65622022656 has 80 divisors (see below), whose sum is σ = 178540965504. Its totient is φ = 21408579584.

The previous prime is 65622022651. The next prime is 65622022681.

65622022656 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (65622022651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382305 + ... + 526688.

Almost surely, 2^65622022656 is an apocalyptic number.

It is an amenable number.

65622022656 is an abundant number, since it is smaller than the sum of its proper divisors (112918942848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65622022656 is an equidigital number, since it uses as much as digits as its factorization.

65622022656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909061 (or 909045 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

It can be divided in two parts, 656220 and 22656, that added together give a palindrome (678876).

The spelling of 65622022656 in words is "sixty-five billion, six hundred twenty-two million, twenty-two thousand, six hundred fifty-six".