16160705649 has 24 divisors (see below), whose sum is σ = 25501382400. Its totient is φ = 9780510240.

The previous prime is 16160705633. The next prime is 16160705657. The reversal of 16160705649 is 94650706161.

16160705649 is a `hidden beast` number, since 1 + 6 + 16 + 0 + 70 + 564 + 9 = 666.

It is not a de Polignac number, because 16160705649 - 2⁴ = 16160705633 is a prime.

It is a super-2 number, since 2×16160705649² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16160705669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44929 + ... + 185310.

It is an arithmetic number, because the mean of its divisors is an integer number (1062557600).

Almost surely, 2^16160705649 is an apocalyptic number.

It is an amenable number.

16160705649 is a deficient number, since it is larger than the sum of its proper divisors (9340676751).

16160705649 is a wasteful number, since it uses less digits than its factorization.

16160705649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230965 (or 230962 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 16160705649 in words is "sixteen billion, one hundred sixty million, seven hundred five thousand, six hundred forty-nine".