345664400552 has 32 divisors (see below), whose sum is σ = 688590563400. Its totient is φ = 162362398464.

The previous prime is 345664400533. The next prime is 345664400569. The reversal of 345664400552 is 255004466543.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 345421851076 + 242549476 = 587726^2 + 15574^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20125643 + ... + 20142810.

Almost surely, 2^345664400552 is an apocalyptic number.

It is an amenable number.

345664400552 is a deficient number, since it is larger than the sum of its proper divisors (342926162848).

345664400552 is a wasteful number, since it uses less digits than its factorization.

345664400552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40268525 (or 40268521 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 345664400552 in words is "three hundred forty-five billion, six hundred sixty-four million, four hundred thousand, five hundred fifty-two".