65990213037 has 24 divisors (see below), whose sum is σ = 109077231744. Its totient is φ = 37659883104.

The previous prime is 65990213021. The next prime is 65990213057. The reversal of 65990213037 is 73031209956.

65990213037 is a `hidden beast` number, since 6 + 599 + 0 + 21 + 3 + 0 + 37 = 666.

It is not a de Polignac number, because 65990213037 - 2⁴ = 65990213021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65990212983 and 65990213001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65990213057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 628833 + ... + 726230.

It is an arithmetic number, because the mean of its divisors is an integer number (4544884656).

Almost surely, 2^65990213037 is an apocalyptic number.

It is an amenable number.

65990213037 is a deficient number, since it is larger than the sum of its proper divisors (43087018707).

65990213037 is a wasteful number, since it uses less digits than its factorization.

65990213037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355849 (or 1355846 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The spelling of 65990213037 in words is "sixty-five billion, nine hundred ninety million, two hundred thirteen thousand, thirty-seven".