320641375542404 has 24 divisors (see below), whose sum is σ = 641809688499840. Its totient is φ = 137304817214976.

The previous prime is 320641375542347. The next prime is 320641375542421. The reversal of 320641375542404 is 404245573146023.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704763664 + ... + 4704831815.

It is an arithmetic number, because the mean of its divisors is an integer number (26742070354160).

Almost surely, 2^{320641375542404} is an apocalyptic number.

It is an amenable number.

320641375542404 is an abundant number, since it is smaller than the sum of its proper divisors (321168312957436).

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

320641375542404 is a wasteful number, since it uses less digits than its factorization.

320641375542404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9409596707 (or 9409596705 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 50.

The spelling of 320641375542404 in words is "three hundred twenty trillion, six hundred forty-one billion, three hundred seventy-five million, five hundred forty-two thousand, four hundred four".