65104651997 has 16 divisors (see below), whose sum is σ = 82500088704. Its totient is φ = 49899240000.

The previous prime is 65104651933. The next prime is 65104652017. The reversal of 65104651997 is 79915640156.

65104651997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 65104651997 - 2⁶ = 65104651933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65104651097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6925754 + ... + 6935147.

It is an arithmetic number, because the mean of its divisors is an integer number (5156255544).

Almost surely, 2^65104651997 is an apocalyptic number.

It is an amenable number.

65104651997 is a deficient number, since it is larger than the sum of its proper divisors (17395436707).

65104651997 is a wasteful number, since it uses less digits than its factorization.

65104651997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860980.

The product of its (nonzero) digits is 2041200, while the sum is 53.

The spelling of 65104651997 in words is "sixty-five billion, one hundred four million, six hundred fifty-one thousand, nine hundred ninety-seven".