16355140656 has 80 divisors (see below), whose sum is σ = 44133603840. Its totient is φ = 5209262080.

The previous prime is 16355140597. The next prime is 16355140661. The reversal of 16355140656 is 65604155361.

It is a super-2 number, since 2×16355140656² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1131040 + ... + 1145408.

It is an arithmetic number, because the mean of its divisors is an integer number (551670048).

Almost surely, 2^16355140656 is an apocalyptic number.

16355140656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16355140656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22066801920).

16355140656 is an abundant number, since it is smaller than the sum of its proper divisors (27778463184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16355140656 is a wasteful number, since it uses less digits than its factorization.

16355140656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15434 (or 15428 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 16355140656 in words is "sixteen billion, three hundred fifty-five million, one hundred forty thousand, six hundred fifty-six".