65377616511 has 16 divisors (see below), whose sum is σ = 87824510816. Its totient is φ = 43258945536.

The previous prime is 65377616509. The next prime is 65377616543. The reversal of 65377616511 is 11561677356.

It is not a de Polignac number, because 65377616511 - 2¹ = 65377616509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65377616611) 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, 120321 + ... + 381093.

It is an arithmetic number, because the mean of its divisors is an integer number (5489031926).

Almost surely, 2^65377616511 is an apocalyptic number.

65377616511 is a deficient number, since it is larger than the sum of its proper divisors (22446894305).

65377616511 is a wasteful number, since it uses less digits than its factorization.

65377616511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261402.

The product of its digits is 793800, while the sum is 48.

The spelling of 65377616511 in words is "sixty-five billion, three hundred seventy-seven million, six hundred sixteen thousand, five hundred eleven".