626642466000 has 80 divisors (see below), whose sum is σ = 2020295329728. Its totient is φ = 167104656000.

The previous prime is 626642465963. The next prime is 626642466001. The reversal of 626642466000 is 664246626.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×626642466000² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (626642466001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52214206 + ... + 52226205.

Almost surely, 2^626642466000 is an apocalyptic number.

626642466000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

626642466000 is an abundant number, since it is smaller than the sum of its proper divisors (1393652863728).

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

626642466000 is a wasteful number, since it uses less digits than its factorization.

626642466000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104440437 (or 104440421 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 626642466000 in words is "six hundred twenty-six billion, six hundred forty-two million, four hundred sixty-six thousand".