64626420400000 has 96 divisors (see below), whose sum is σ = 160924634773560. Its totient is φ = 25850568000000.

The previous prime is 64626420399953. The next prime is 64626420400013. The reversal of 64626420400000 is 402462646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80383026 + ... + 81183025.

Almost surely, 2^{64626420400000} is an apocalyptic number.

It is an amenable number.

64626420400000 is an abundant number, since it is smaller than the sum of its proper divisors (96298214373560).

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

64626420400000 is an frugal number, since it uses more digits than its factorization.

64626420400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161566090 (or 161566058 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

Adding to 64626420400000 its reverse (402462646), we get a palindrome (64626822862646).

The spelling of 64626420400000 in words is "sixty-four trillion, six hundred twenty-six billion, four hundred twenty million, four hundred thousand".