342643155534 has 128 divisors (see below), whose sum is σ = 780782745600. Its totient is φ = 112746953376.

The previous prime is 342643155499. The next prime is 342643155611. The reversal of 342643155534 is 435551346243.

342643155534 is a `hidden beast` number, since 3 + 4 + 2 + 64 + 3 + 1 + 55 + 534 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 342643155534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 168043687 + ... + 168045725.

It is an arithmetic number, because the mean of its divisors is an integer number (6099865200).

Almost surely, 2^342643155534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 342643155534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390391372800).

342643155534 is an abundant number, since it is smaller than the sum of its proper divisors (438139590066).

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

342643155534 is a wasteful number, since it uses less digits than its factorization.

342643155534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538 (or 2520 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 45.

The spelling of 342643155534 in words is "three hundred forty-two billion, six hundred forty-three million, one hundred fifty-five thousand, five hundred thirty-four".