345559731760 has 40 divisors (see below), whose sum is σ = 803504219760. Its totient is φ = 138210500352.

The previous prime is 345559731739. The next prime is 345559731791. The reversal of 345559731760 is 67137955543.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

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, 643159 + ... + 1051081.

It is an arithmetic number, because the mean of its divisors is an integer number (20087605494).

Almost surely, 2^345559731760 is an apocalyptic number.

It is an amenable number.

345559731760 is an abundant number, since it is smaller than the sum of its proper divisors (457944488000).

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

345559731760 is a wasteful number, since it uses less digits than its factorization.

345559731760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418525 (or 418519 counting only the distinct ones).

The product of its (nonzero) digits is 11907000, while the sum is 55.

The spelling of 345559731760 in words is "three hundred forty-five billion, five hundred fifty-nine million, seven hundred thirty-one thousand, seven hundred sixty".