65138077102 has 16 divisors (see below), whose sum is σ = 113331922560. Its totient is φ = 27499656888.

The previous prime is 65138077087. The next prime is 65138077133. The reversal of 65138077102 is 20177083156.

65138077102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34720852 + ... + 34722727.

It is an arithmetic number, because the mean of its divisors is an integer number (7083245160).

Almost surely, 2^65138077102 is an apocalyptic number.

65138077102 is a deficient number, since it is larger than the sum of its proper divisors (48193845458).

65138077102 is a wasteful number, since it uses less digits than its factorization.

65138077102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69443655.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 65138077102 in words is "sixty-five billion, one hundred thirty-eight million, seventy-seven thousand, one hundred two".