345144222621 has 24 divisors (see below), whose sum is σ = 558562646304. Its totient is φ = 203524846560.

The previous prime is 345144222617. The next prime is 345144222629. The reversal of 345144222621 is 126222441543.

345144222621 is a `hidden beast` number, since 3 + 4 + 5 + 1 + 4 + 4 + 2 + 22 + 621 = 666.

It is not a de Polignac number, because 345144222621 - 2² = 345144222617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345144222629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47108571 + ... + 47115896.

It is an arithmetic number, because the mean of its divisors is an integer number (23273443596).

Almost surely, 2^345144222621 is an apocalyptic number.

It is an amenable number.

345144222621 is a deficient number, since it is larger than the sum of its proper divisors (213418423683).

345144222621 is a wasteful number, since it uses less digits than its factorization.

345144222621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94224521 (or 94224518 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

It can be divided in two parts, 345144 and 222621, that added together give a palindrome (567765).

The spelling of 345144222621 in words is "three hundred forty-five billion, one hundred forty-four million, two hundred twenty-two thousand, six hundred twenty-one".