320556204414516 has 192 divisors, whose sum is σ = 910035721986048. Its totient is φ = 85836786427392.

The previous prime is 320556204414487. The next prime is 320556204414533. The reversal of 320556204414516 is 615414402655023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73973530 + ... + 78186926.

It is an arithmetic number, because the mean of its divisors is an integer number (4739769385344).

Almost surely, 2^{320556204414516} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 320556204414516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455017860993024).

320556204414516 is an abundant number, since it is smaller than the sum of its proper divisors (589479517571532).

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

320556204414516 is a wasteful number, since it uses less digits than its factorization.

320556204414516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214230 (or 4214228 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 48.

The spelling of 320556204414516 in words is "three hundred twenty trillion, five hundred fifty-six billion, two hundred four million, four hundred fourteen thousand, five hundred sixteen".