16896267797049 has 81 divisors (see below), whose sum is σ = 26203012202991. Its totient is φ = 10894158912240.

The previous prime is 16896267797039. The next prime is 16896267797077. The reversal of 16896267797049 is 94079776269861.

The square root of 16896267797049 is 4110507.

It is a perfect power (a square), and thus also a powerful number.

16896267797049 is a `hidden beast` number, since 168 + 96 + 267 + 7 + 9 + 70 + 49 = 666.

16896267797049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 512133453225 + 16384134343824 = 715635^2 + 4047732^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is not a de Polignac number, because 16896267797049 - 2⁷ = 16896267796921 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (16896267797009) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10321482259 + ... + 10321483895.

Almost surely, 2^{16896267797049} is an apocalyptic number.

16896267797049 is the 4110507-th square number.

16896267797049 is the 2055254-th centered octagonal number.

It is an amenable number.

16896267797049 is a deficient number, since it is larger than the sum of its proper divisors (9306744405942).

16896267797049 is an frugal number, since it uses more digits than its factorization.

16896267797049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 3456649728, while the sum is 81.

16896267797049 divided by its sum of digits (81) gives a square (208595898729 = 456723²).

The spelling of 16896267797049 in words is "sixteen trillion, eight hundred ninety-six billion, two hundred sixty-seven million, seven hundred ninety-seven thousand, forty-nine".