65331563775 has 48 divisors (see below), whose sum is σ = 110753744640. Its totient is φ = 33961593600.

The previous prime is 65331563767. The next prime is 65331563809. The reversal of 65331563775 is 57736513356.

It is not a de Polignac number, because 65331563775 - 2³ = 65331563767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3443766 + ... + 3462684.

It is an arithmetic number, because the mean of its divisors is an integer number (2307369680).

Almost surely, 2^65331563775 is an apocalyptic number.

65331563775 is a deficient number, since it is larger than the sum of its proper divisors (45422180865).

65331563775 is a wasteful number, since it uses less digits than its factorization.

65331563775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20096 (or 20091 counting only the distinct ones).

The product of its digits is 5953500, while the sum is 51.

The spelling of 65331563775 in words is "sixty-five billion, three hundred thirty-one million, five hundred sixty-three thousand, seven hundred seventy-five".