345689565690 has 32 divisors (see below), whose sum is σ = 948177095040. Its totient is φ = 79014757824.

The previous prime is 345689565671. The next prime is 345689565713. The reversal of 345689565690 is 96565986543.

345689565690 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×345689565690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823070185 + ... + 823070604.

It is an arithmetic number, because the mean of its divisors is an integer number (29630534220).

Almost surely, 2^345689565690 is an apocalyptic number.

345689565690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

345689565690 is an abundant number, since it is smaller than the sum of its proper divisors (602487529350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345689565690 is a wasteful number, since it uses less digits than its factorization.

345689565690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1646140806.

The product of its (nonzero) digits is 209952000, while the sum is 66.

The spelling of 345689565690 in words is "three hundred forty-five billion, six hundred eighty-nine million, five hundred sixty-five thousand, six hundred ninety".