64622066416 has 40 divisors (see below), whose sum is σ = 127599538464. Its totient is φ = 31693459200.

The previous prime is 64622066407. The next prime is 64622066417. The reversal of 64622066416 is 61466022646.

It is a super-2 number, since 2×64622066416² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64622066417) 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, 4827765 + ... + 4841131.

Almost surely, 2^64622066416 is an apocalyptic number.

It is an amenable number.

64622066416 is a deficient number, since it is larger than the sum of its proper divisors (62977472048).

64622066416 is a wasteful number, since it uses less digits than its factorization.

64622066416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19129 (or 19123 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 64622066416 in words is "sixty-four billion, six hundred twenty-two million, sixty-six thousand, four hundred sixteen".