65122021464 has 32 divisors (see below), whose sum is σ = 162916728000. Its totient is φ = 21692450592.

The previous prime is 65122021429. The next prime is 65122021493. The reversal of 65122021464 is 46412022156.

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, 894874 + ... + 964905.

It is an arithmetic number, because the mean of its divisors is an integer number (5091147750).

Almost surely, 2^65122021464 is an apocalyptic number.

It is an amenable number.

65122021464 is an abundant number, since it is smaller than the sum of its proper divisors (97794706536).

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

65122021464 is a wasteful number, since it uses less digits than its factorization.

65122021464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861247 (or 1861243 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 65122021464 in words is "sixty-five billion, one hundred twenty-two million, twenty-one thousand, four hundred sixty-four".