155240421251352 has 32 divisors (see below), whose sum is σ = 388939284372480. Its totient is φ = 51635042917920.

The previous prime is 155240421251327. The next prime is 155240421251371. The reversal of 155240421251352 is 253152124042551.

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, 6985249024 + ... + 6985271247.

It is an arithmetic number, because the mean of its divisors is an integer number (12154352636640).

Almost surely, 2^{155240421251352} is an apocalyptic number.

155240421251352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155240421251352 is an abundant number, since it is smaller than the sum of its proper divisors (233698863121128).

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

155240421251352 is a wasteful number, since it uses less digits than its factorization.

155240421251352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13970520743 (or 13970520739 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 155240421251352 in words is "one hundred fifty-five trillion, two hundred forty billion, four hundred twenty-one million, two hundred fifty-one thousand, three hundred fifty-two".