16161061650 has 48 divisors (see below), whose sum is σ = 41162674944. Its totient is φ = 4193138880.

The previous prime is 16161061643. The next prime is 16161061661. The reversal of 16161061650 is 5616016161.

16161061650 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16161061650² (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 23 ways as a sum of consecutive naturals, for example, 1450402 + ... + 1461501.

It is an arithmetic number, because the mean of its divisors is an integer number (857555728).

Almost surely, 2^16161061650 is an apocalyptic number.

16161061650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16161061650 is an abundant number, since it is smaller than the sum of its proper divisors (25001613294).

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

16161061650 is a wasteful number, since it uses less digits than its factorization.

16161061650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2911955 (or 2911950 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The spelling of 16161061650 in words is "sixteen billion, one hundred sixty-one million, sixty-one thousand, six hundred fifty".