16781360311 has 8 divisors (see below), whose sum is σ = 17202238704. Its totient is φ = 16361033280.

The previous prime is 16781360279. The next prime is 16781360317. The reversal of 16781360311 is 11306318761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16781360311 - 2⁵ = 16781360279 is a prime.

It is a super-2 number, since 2×16781360311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16781360317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75861 + ... + 198286.

It is an arithmetic number, because the mean of its divisors is an integer number (2150279838).

Almost surely, 2^16781360311 is an apocalyptic number.

16781360311 is a deficient number, since it is larger than the sum of its proper divisors (420878393).

16781360311 is a wasteful number, since it uses less digits than its factorization.

16781360311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275681.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 16781360311 in words is "sixteen billion, seven hundred eighty-one million, three hundred sixty thousand, three hundred eleven".