155355151520 has 24 divisors (see below), whose sum is σ = 367026545844. Its totient is φ = 62142060544.

The previous prime is 155355151519. The next prime is 155355151603. The reversal of 155355151520 is 25151553551.

It can be written as a sum of positive squares in 2 ways, for example, as 146355214096 + 8999937424 = 382564^2 + 94868^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485484689 + ... + 485485008.

Almost surely, 2^155355151520 is an apocalyptic number.

155355151520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155355151520 is an abundant number, since it is smaller than the sum of its proper divisors (211671394324).

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

155355151520 is an equidigital number, since it uses as much as digits as its factorization.

155355151520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970969712 (or 970969704 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 38.

The spelling of 155355151520 in words is "one hundred fifty-five billion, three hundred fifty-five million, one hundred fifty-one thousand, five hundred twenty".