16165601560 has 16 divisors (see below), whose sum is σ = 36372603600. Its totient is φ = 6466240608.

The previous prime is 16165601533. The next prime is 16165601567. The reversal of 16165601560 is 6510656161.

It is a super-2 number, since 2×16165601560² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16165601567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202069980 + ... + 202070059.

It is an arithmetic number, because the mean of its divisors is an integer number (2273287725).

Almost surely, 2^16165601560 is an apocalyptic number.

16165601560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16165601560 is an abundant number, since it is smaller than the sum of its proper divisors (20207002040).

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

16165601560 is a wasteful number, since it uses less digits than its factorization.

16165601560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404140050 (or 404140046 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 37.

It can be divided in two parts, 16165601 and 560, that added together give a palindrome (16166161).

The spelling of 16165601560 in words is "sixteen billion, one hundred sixty-five million, six hundred one thousand, five hundred sixty".