155204405112252 has 24 divisors (see below), whose sum is σ = 383446177336656. Its totient is φ = 48691578074368.

The previous prime is 155204405112241. The next prime is 155204405112277. The reversal of 155204405112252 is 252211504402551.

It is a self number, because there is not a number n which added to its sum of digits gives 155204405112252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380402953503 + ... + 380402953910.

It is an arithmetic number, because the mean of its divisors is an integer number (15976924055694).

Almost surely, 2^{155204405112252} is an apocalyptic number.

155204405112252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155204405112252 is an abundant number, since it is smaller than the sum of its proper divisors (228241772224404).

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

155204405112252 is a wasteful number, since it uses less digits than its factorization.

155204405112252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760805907437 (or 760805907435 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 39.

The spelling of 155204405112252 in words is "one hundred fifty-five trillion, two hundred four billion, four hundred five million, one hundred twelve thousand, two hundred fifty-two".