65992047957 has 24 divisors (see below), whose sum is σ = 103996515168. Its totient is φ = 39991701600.

The previous prime is 65992047949. The next prime is 65992048021. The reversal of 65992047957 is 75974029956.

65992047957 is a `hidden beast` number, since 6 + 5 + 99 + 20 + 479 + 57 = 666.

It is not a de Polignac number, because 65992047957 - 2³ = 65992047949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65992047894 and 65992047903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65992047257) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1543407 + ... + 1585587.

It is an arithmetic number, because the mean of its divisors is an integer number (4333188132).

Almost surely, 2^65992047957 is an apocalyptic number.

It is an amenable number.

65992047957 is a deficient number, since it is larger than the sum of its proper divisors (38004467211).

65992047957 is a wasteful number, since it uses less digits than its factorization.

65992047957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58001 (or 57998 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 63.

The spelling of 65992047957 in words is "sixty-five billion, nine hundred ninety-two million, forty-seven thousand, nine hundred fifty-seven".