916149912 has 32 divisors (see below), whose sum is σ = 2293730880. Its totient is φ = 304935840.

The previous prime is 916149887. The next prime is 916149929. The reversal of 916149912 is 219941619.

It is a happy number.

It is a super-2 number, since 2×916149912² = 1678661322515215488, which contains 22 as substring.

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, 11038 + ... + 44205.

It is an arithmetic number, because the mean of its divisors is an integer number (71679090).

Almost surely, 2^916149912 is an apocalyptic number.

It is an amenable number.

916149912 is an abundant number, since it is smaller than the sum of its proper divisors (1377580968).

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

916149912 is a wasteful number, since it uses less digits than its factorization.

916149912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55943 (or 55939 counting only the distinct ones).

The product of its digits is 34992, while the sum is 42.

The square root of 916149912 is about 30267.9684154718. The cubic root of 916149912 is about 971.2302072892.

The spelling of 916149912 in words is "nine hundred sixteen million, one hundred forty-nine thousand, nine hundred twelve".