65097976320 has 1600 divisors, whose sum is σ = 279492111360. Its totient is φ = 14332723200.

The previous prime is 65097976313. The next prime is 65097976381. The reversal of 65097976320 is 2367979056.

65097976320 is a `hidden beast` number, since 6 + 509 + 79 + 7 + 63 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1587755500 + ... + 1587755540.

Almost surely, 2^65097976320 is an apocalyptic number.

65097976320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65097976320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139746055680).

65097976320 is an abundant number, since it is smaller than the sum of its proper divisors (214394135040).

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

65097976320 is a wasteful number, since it uses less digits than its factorization.

65097976320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The spelling of 65097976320 in words is "sixty-five billion, ninety-seven million, nine hundred seventy-six thousand, three hundred twenty".