65997120376 has 32 divisors (see below), whose sum is σ = 135077374080. Its totient is φ = 29980188000.

The previous prime is 65997120347. The next prime is 65997120389. The reversal of 65997120376 is 67302179956.

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, 87300 + ... + 373651.

It is an arithmetic number, because the mean of its divisors is an integer number (4221167940).

Almost surely, 2^65997120376 is an apocalyptic number.

It is an amenable number.

65997120376 is an abundant number, since it is smaller than the sum of its proper divisors (69080253704).

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

65997120376 is a wasteful number, since it uses less digits than its factorization.

65997120376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462595 (or 462591 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 55.

The spelling of 65997120376 in words is "sixty-five billion, nine hundred ninety-seven million, one hundred twenty thousand, three hundred seventy-six".