420664400305320 has 128 divisors (see below), whose sum is σ = 1327713348407040. Its totient is φ = 106483275970560.

The previous prime is 420664400305277. The next prime is 420664400305349. The reversal of 420664400305320 is 23503004466024.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1155235452 + ... + 1155599531.

It is an arithmetic number, because the mean of its divisors is an integer number (10372760534430).

Almost surely, 2^{420664400305320} is an apocalyptic number.

420664400305320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420664400305320 is an abundant number, since it is smaller than the sum of its proper divisors (907048948101720).

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

420664400305320 is a wasteful number, since it uses less digits than its factorization.

420664400305320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310835075 (or 2310835071 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 420664400305320 in words is "four hundred twenty trillion, six hundred sixty-four billion, four hundred million, three hundred five thousand, three hundred twenty".