65610764137 has 4 divisors (see below), whose sum is σ = 68463406080. Its totient is φ = 62758122196.

The previous prime is 65610764113. The next prime is 65610764173. The reversal of 65610764137 is 73146701656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65610764137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65617764137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426320937 + ... + 1426320982.

It is an arithmetic number, because the mean of its divisors is an integer number (17115851520).

Almost surely, 2^65610764137 is an apocalyptic number.

It is an amenable number.

65610764137 is a deficient number, since it is larger than the sum of its proper divisors (2852641943).

65610764137 is a wasteful number, since it uses less digits than its factorization.

65610764137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2852641942.

The product of its (nonzero) digits is 635040, while the sum is 46.

The spelling of 65610764137 in words is "sixty-five billion, six hundred ten million, seven hundred sixty-four thousand, one hundred thirty-seven".