420655657008 has 80 divisors (see below), whose sum is σ = 1100658521600. Its totient is φ = 138417327360.

The previous prime is 420655656991. The next prime is 420655657043. The reversal of 420655657008 is 800756556024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38449203 + ... + 38460141.

It is an arithmetic number, because the mean of its divisors is an integer number (13758231520).

Almost surely, 2^420655657008 is an apocalyptic number.

420655657008 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

420655657008 is an abundant number, since it is smaller than the sum of its proper divisors (680002864592).

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

420655657008 is a wasteful number, since it uses less digits than its factorization.

420655657008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21170 (or 21164 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 420655657008 in words is "four hundred twenty billion, six hundred fifty-five million, six hundred fifty-seven thousand, eight".