155251095552 has 240 divisors, whose sum is σ = 529973524080. Its totient is φ = 44357124096.

The previous prime is 155251095481. The next prime is 155251095557. The reversal of 155251095552 is 255590152551.

155251095552 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 5 + 1 + 0 + 95 + 552 = 666.

155251095552 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155251095498 and 155251095507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155251095557) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1094368 + ... + 1228064.

It is an arithmetic number, because the mean of its divisors is an integer number (2208223017).

Almost surely, 2^155251095552 is an apocalyptic number.

155251095552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155251095552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264986762040).

155251095552 is an abundant number, since it is smaller than the sum of its proper divisors (374722428528).

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

155251095552 is an equidigital number, since it uses as much as digits as its factorization.

155251095552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133738 (or 133709 counting only the distinct ones).

The product of its (nonzero) digits is 562500, while the sum is 45.

The spelling of 155251095552 in words is "one hundred fifty-five billion, two hundred fifty-one million, ninety-five thousand, five hundred fifty-two".