657345345 has 8 divisors (see below), whose sum is σ = 1051752576. Its totient is φ = 350584176.

The previous prime is 657345329. The next prime is 657345371. The reversal of 657345345 is 543543756.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 657345345 - 2⁴ = 657345329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 657345297 and 657345306.

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, 21911497 + ... + 21911526.

It is an arithmetic number, because the mean of its divisors is an integer number (131469072).

Almost surely, 2^657345345 is an apocalyptic number.

It is an amenable number.

657345345 is a deficient number, since it is larger than the sum of its proper divisors (394407231).

657345345 is a wasteful number, since it uses less digits than its factorization.

657345345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43823031.

The product of its digits is 756000, while the sum is 42.

The square root of 657345345 is about 25638.7469467601. The cubic root of 657345345 is about 869.4898779878.

The spelling of 657345345 in words is "six hundred fifty-seven million, three hundred forty-five thousand, three hundred forty-five".