345545725544 has 8 divisors (see below), whose sum is σ = 647898235410. Its totient is φ = 172772862768.

The previous prime is 345545725453. The next prime is 345545725583. The reversal of 345545725544 is 445527545543.

It can be written as a sum of positive squares in only one way, i.e., 337400663044 + 8145062500 = 580862^2 + 90250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21596607839 + ... + 21596607854.

Almost surely, 2^345545725544 is an apocalyptic number.

It is an amenable number.

345545725544 is a deficient number, since it is larger than the sum of its proper divisors (302352509866).

345545725544 is a wasteful number, since it uses less digits than its factorization.

345545725544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43193215699 (or 43193215695 counting only the distinct ones).

The product of its digits is 33600000, while the sum is 53.

The spelling of 345545725544 in words is "three hundred forty-five billion, five hundred forty-five million, seven hundred twenty-five thousand, five hundred forty-four".