346506644021 has 12 divisors (see below), whose sum is σ = 364406831712. Its totient is φ = 329301041328.

The previous prime is 346506644017. The next prime is 346506644023. The reversal of 346506644021 is 120446605643.

It is not a de Polignac number, because 346506644021 - 2² = 346506644017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 346506644021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (346506644023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2884265 + ... + 3001998.

It is an arithmetic number, because the mean of its divisors is an integer number (30367235976).

Almost surely, 2^346506644021 is an apocalyptic number.

It is an amenable number.

346506644021 is a deficient number, since it is larger than the sum of its proper divisors (17900187691).

346506644021 is an equidigital number, since it uses as much as digits as its factorization.

346506644021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886380 (or 5886343 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 346506644021 in words is "three hundred forty-six billion, five hundred six million, six hundred forty-four thousand, twenty-one".