16231698780 has 48 divisors (see below), whose sum is σ = 49580463744. Its totient is φ = 3934957120.

The previous prime is 16231698709. The next prime is 16231698829. The reversal of 16231698780 is 8789613261.

It is a congruent number.

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, 12296082 + ... + 12297401.

It is an arithmetic number, because the mean of its divisors is an integer number (1032926328).

Almost surely, 2^16231698780 is an apocalyptic number.

16231698780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16231698780 is an abundant number, since it is smaller than the sum of its proper divisors (33348764964).

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

16231698780 is a wasteful number, since it uses less digits than its factorization.

16231698780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24593506 (or 24593504 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 16231698780 in words is "sixteen billion, two hundred thirty-one million, six hundred ninety-eight thousand, seven hundred eighty".