65785633125 has 40 divisors (see below), whose sum is σ = 116055200448. Its totient is φ = 33021792000.

The previous prime is 65785633073. The next prime is 65785633211. The reversal of 65785633125 is 52133658756.

It is not a de Polignac number, because 65785633125 - 2⁹ = 65785632613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1000057 + ... + 1063806.

Almost surely, 2^65785633125 is an apocalyptic number.

It is an amenable number.

65785633125 is a deficient number, since it is larger than the sum of its proper divisors (50269567323).

65785633125 is a wasteful number, since it uses less digits than its factorization.

65785633125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2063903 (or 2063888 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 51.

The spelling of 65785633125 in words is "sixty-five billion, seven hundred eighty-five million, six hundred thirty-three thousand, one hundred twenty-five".