345155426172 has 36 divisors (see below), whose sum is σ = 874368831336. Its totient is φ = 114802233120.

The previous prime is 345155426149. The next prime is 345155426219. The reversal of 345155426172 is 271624551543.

345155426172 is a `hidden beast` number, since 3 + 4 + 5 + 1 + 55 + 426 + 172 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10382158 + ... + 10415349.

Almost surely, 2^345155426172 is an apocalyptic number.

It is an amenable number.

345155426172 is an abundant number, since it is smaller than the sum of its proper divisors (529213405164).

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

345155426172 is a wasteful number, since it uses less digits than its factorization.

345155426172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20797978 (or 20797973 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 345155426172 in words is "three hundred forty-five billion, one hundred fifty-five million, four hundred twenty-six thousand, one hundred seventy-two".