16231497772 has 12 divisors (see below), whose sum is σ = 32462995600. Its totient is φ = 6956356176.

The previous prime is 16231497769. The next prime is 16231497781. The reversal of 16231497772 is 27779413261.

16231497772 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289848147 + ... + 289848202.

Almost surely, 2^16231497772 is an apocalyptic number.

It is an amenable number.

16231497772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16231497772 is a wasteful number, since it uses less digits than its factorization.

16231497772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579696360 (or 579696358 counting only the distinct ones).

The product of its digits is 889056, while the sum is 49.

The spelling of 16231497772 in words is "sixteen billion, two hundred thirty-one million, four hundred ninety-seven thousand, seven hundred seventy-two".