320451375455651 has 8 divisors (see below), whose sum is σ = 349735775452464. Its totient is φ = 291192384921120.

The previous prime is 320451375455641. The next prime is 320451375455657. The reversal of 320451375455651 is 156554573154023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320451375455651 - 2¹⁸ = 320451375193507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320451375455657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6352339196 + ... + 6352389641.

It is an arithmetic number, because the mean of its divisors is an integer number (43716971931558).

Almost surely, 2^{320451375455651} is an apocalyptic number.

320451375455651 is a deficient number, since it is larger than the sum of its proper divisors (29284399996813).

320451375455651 is a wasteful number, since it uses less digits than its factorization.

320451375455651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12704731141.

The product of its (nonzero) digits is 37800000, while the sum is 56.

The spelling of 320451375455651 in words is "three hundred twenty trillion, four hundred fifty-one billion, three hundred seventy-five million, four hundred fifty-five thousand, six hundred fifty-one".