320534411405550 has 48 divisors (see below), whose sum is σ = 816409808956272. Its totient is φ = 83165685120000.

The previous prime is 320534411405543. The next prime is 320534411405597. The reversal of 320534411405550 is 55504114435023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28876968451 + ... + 28876979550.

It is an arithmetic number, because the mean of its divisors is an integer number (17008537686589).

Almost surely, 2^{320534411405550} is an apocalyptic number.

320534411405550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

320534411405550 is an abundant number, since it is smaller than the sum of its proper divisors (495875397550722).

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

320534411405550 is a wasteful number, since it uses less digits than its factorization.

320534411405550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57753948053 (or 57753948048 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 42.

The spelling of 320534411405550 in words is "three hundred twenty trillion, five hundred thirty-four billion, four hundred eleven million, four hundred five thousand, five hundred fifty".