65920393224 has 96 divisors (see below), whose sum is σ = 207384315840. Its totient is φ = 18525628800.

The previous prime is 65920393199. The next prime is 65920393237. The reversal of 65920393224 is 42239302956.

65920393224 is a `hidden beast` number, since 6 + 592 + 0 + 3 + 9 + 32 + 24 = 666.

It is a super-2 number, since 2×65920393224² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65920393224.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1041342 + ... + 1102829.

It is an arithmetic number, because the mean of its divisors is an integer number (2160253290).

Almost surely, 2^65920393224 is an apocalyptic number.

It is an amenable number.

65920393224 is an abundant number, since it is smaller than the sum of its proper divisors (141463922616).

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

65920393224 is a wasteful number, since it uses less digits than its factorization.

65920393224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144251 (or 2144244 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 65920393224 in words is "sixty-five billion, nine hundred twenty million, three hundred ninety-three thousand, two hundred twenty-four".