345551515215 has 32 divisors (see below), whose sum is σ = 554014805760. Its totient is φ = 183917063424.

The previous prime is 345551515147. The next prime is 345551515219. The reversal of 345551515215 is 512515155543.

It is not a de Polignac number, because 345551515215 - 2⁹ = 345551514703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345551515219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15849552 + ... + 15871338.

It is an arithmetic number, because the mean of its divisors is an integer number (17312962680).

Almost surely, 2^345551515215 is an apocalyptic number.

345551515215 is a deficient number, since it is larger than the sum of its proper divisors (208463290545).

345551515215 is a wasteful number, since it uses less digits than its factorization.

345551515215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23911.

The product of its digits is 375000, while the sum is 42.

The spelling of 345551515215 in words is "three hundred forty-five billion, five hundred fifty-one million, five hundred fifteen thousand, two hundred fifteen".