65699377601 has 32 divisors (see below), whose sum is σ = 81479018880. Its totient is φ = 52081920000.

The previous prime is 65699377567. The next prime is 65699377613. The reversal of 65699377601 is 10677399656.

It is not a de Polignac number, because 65699377601 - 2⁶ = 65699377537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65699377631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 924851 + ... + 993351.

It is an arithmetic number, because the mean of its divisors is an integer number (2546219340).

Almost surely, 2^65699377601 is an apocalyptic number.

It is an amenable number.

65699377601 is a deficient number, since it is larger than the sum of its proper divisors (15779641279).

65699377601 is a wasteful number, since it uses less digits than its factorization.

65699377601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68897.

The product of its (nonzero) digits is 12859560, while the sum is 59.

The spelling of 65699377601 in words is "sixty-five billion, six hundred ninety-nine million, three hundred seventy-seven thousand, six hundred one".