64622066401 has 8 divisors (see below), whose sum is σ = 67606689024. Its totient is φ = 61704514080.

The previous prime is 64622066389. The next prime is 64622066407. The reversal of 64622066401 is 10466022646.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64622066401 - 2⁹ = 64622065889 is a prime.

It is a super-2 number, since 2×64622066401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64622066407) 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, 16765605 + ... + 16769458.

It is an arithmetic number, because the mean of its divisors is an integer number (8450836128).

Almost surely, 2^64622066401 is an apocalyptic number.

It is an amenable number.

64622066401 is a deficient number, since it is larger than the sum of its proper divisors (2984622623).

64622066401 is a wasteful number, since it uses less digits than its factorization.

64622066401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33535151.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 64622066401 in words is "sixty-four billion, six hundred twenty-two million, sixty-six thousand, four hundred one".