64676171430400 has 60 divisors (see below), whose sum is σ = 160240267576422. Its totient is φ = 25870468567040.

The previous prime is 64676171430329. The next prime is 64676171430421. The reversal of 64676171430400 is 403417167646.

It can be written as a sum of positive squares in 3 ways, for example, as 58915326599424 + 5760844830976 = 7675632^2 + 2400176^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2526400147 + ... + 2526425746.

Almost surely, 2^{64676171430400} is an apocalyptic number.

It is an amenable number.

64676171430400 is an abundant number, since it is smaller than the sum of its proper divisors (95564096146022).

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

64676171430400 is an equidigital number, since it uses as much as digits as its factorization.

64676171430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5052825921 (or 5052825900 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 64676171430400 in words is "sixty-four trillion, six hundred seventy-six billion, one hundred seventy-one million, four hundred thirty thousand, four hundred".