911665916 has 12 divisors (see below), whose sum is σ = 1823331888. Its totient is φ = 390713952.

The previous prime is 911665897. The next prime is 911665921. The reversal of 911665916 is 619566119.

911665916 is an admirable number.

It is a super-2 number, since 2×911665916² = 1662269484792238112, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16279721 + ... + 16279776.

It is an arithmetic number, because the mean of its divisors is an integer number (151944324).

Almost surely, 2^911665916 is an apocalyptic number.

It is an amenable number.

911665916 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.

911665916 is a wasteful number, since it uses less digits than its factorization.

911665916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32559508 (or 32559506 counting only the distinct ones).

The product of its digits is 87480, while the sum is 44.

The square root of 911665916 is about 30193.8059210826. The cubic root of 911665916 is about 969.6430883028.

The spelling of 911665916 in words is "nine hundred eleven million, six hundred sixty-five thousand, nine hundred sixteen".