345866557664 has 24 divisors (see below), whose sum is σ = 681465710520. Its totient is φ = 172795901056.

The previous prime is 345866557639. The next prime is 345866557681. The reversal of 345866557664 is 466755668543.

It is a super-3 number, since 3×345866557664³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 345866557664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4252139 + ... + 4332714.

It is an arithmetic number, because the mean of its divisors is an integer number (28394404605).

Almost surely, 2^345866557664 is an apocalyptic number.

It is an amenable number.

345866557664 is a deficient number, since it is larger than the sum of its proper divisors (335599152856).

345866557664 is a wasteful number, since it uses less digits than its factorization.

345866557664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8586122 (or 8586114 counting only the distinct ones).

The product of its digits is 435456000, while the sum is 65.

The spelling of 345866557664 in words is "three hundred forty-five billion, eight hundred sixty-six million, five hundred fifty-seven thousand, six hundred sixty-four".