3445558407920 has 80 divisors (see below), whose sum is σ = 8181917180928. Its totient is φ = 1348808997120.

The previous prime is 3445558407883. The next prime is 3445558408003. The reversal of 3445558407920 is 297048555443.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95662715 + ... + 95698725.

Almost surely, 2^{3445558407920} is an apocalyptic number.

It is an amenable number.

3445558407920 is an abundant number, since it is smaller than the sum of its proper divisors (4736358773008).

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

3445558407920 is a wasteful number, since it uses less digits than its factorization.

3445558407920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61518 (or 61512 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 56.

The spelling of 3445558407920 in words is "three trillion, four hundred forty-five billion, five hundred fifty-eight million, four hundred seven thousand, nine hundred twenty".