155356528068 has 432 divisors, whose sum is σ = 501541447680. Its totient is φ = 41113220544.

The previous prime is 155356528043. The next prime is 155356528079. The reversal of 155356528068 is 860825653551.

155356528068 is a `hidden beast` number, since 1 + 5 + 5 + 3 + 56 + 528 + 0 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 164050771 + ... + 164051717.

Almost surely, 2^155356528068 is an apocalyptic number.

155356528068 is a gapful number since it is divisible by the number (18) 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 155356528068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250770723840).

155356528068 is an abundant number, since it is smaller than the sum of its proper divisors (346184919612).

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

155356528068 is an equidigital number, since it uses as much as digits as its factorization.

155356528068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 54.

The spelling of 155356528068 in words is "one hundred fifty-five billion, three hundred fifty-six million, five hundred twenty-eight thousand, sixty-eight".