64250542022 has 4 divisors (see below), whose sum is σ = 96375813036. Its totient is φ = 32125271010.

The previous prime is 64250542019. The next prime is 64250542049. The reversal of 64250542022 is 22024505246.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22024505246 = 2 ⋅11012252623.

It is a self number, because there is not a number n which added to its sum of digits gives 64250542022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16062635504 + ... + 16062635507.

It is an arithmetic number, because the mean of its divisors is an integer number (24093953259).

Almost surely, 2^64250542022 is an apocalyptic number.

64250542022 is a deficient number, since it is larger than the sum of its proper divisors (32125271014).

64250542022 is a wasteful number, since it uses less digits than its factorization.

64250542022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32125271013.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 64250542022 in words is "sixty-four billion, two hundred fifty million, five hundred forty-two thousand, twenty-two".