15772116612 has 48 divisors (see below), whose sum is σ = 42079356032. Its totient is φ = 4504135680.

The previous prime is 15772116593. The next prime is 15772116641. The reversal of 15772116612 is 21661127751.

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, 133062 + ... + 221922.

Almost surely, 2^15772116612 is an apocalyptic number.

15772116612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15772116612 is an abundant number, since it is smaller than the sum of its proper divisors (26307239420).

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

15772116612 is a wasteful number, since it uses less digits than its factorization.

15772116612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90988 (or 90986 counting only the distinct ones).

The product of its digits is 35280, while the sum is 39.

The spelling of 15772116612 in words is "fifteen billion, seven hundred seventy-two million, one hundred sixteen thousand, six hundred twelve".