16885638235320 has 32 divisors (see below), whose sum is σ = 50656914706320. Its totient is φ = 4502836862720.

The previous prime is 16885638235253. The next prime is 16885638235331. The reversal of 16885638235320 is 2353283658861.

It is a super-2 number, since 2×16885638235320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70356825861 + ... + 70356826100.

Almost surely, 2^{16885638235320} is an apocalyptic number.

16885638235320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16885638235320 is an abundant number, since it is smaller than the sum of its proper divisors (33771276471000).

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

16885638235320 is a wasteful number, since it uses less digits than its factorization.

16885638235320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140713651975 (or 140713651971 counting only the distinct ones).

The product of its (nonzero) digits is 49766400, while the sum is 60.

The spelling of 16885638235320 in words is "sixteen trillion, eight hundred eighty-five billion, six hundred thirty-eight million, two hundred thirty-five thousand, three hundred twenty".