155152620 has 180 divisors, whose sum is σ = 550564560. Its totient is φ = 35364672.

The previous prime is 155152619. The next prime is 155152631. The reversal of 155152620 is 26251551.

155152620 is a `hidden beast` number, since 1 + 551 + 52 + 62 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 432001 + ... + 432359.

It is an arithmetic number, because the mean of its divisors is an integer number (3058692).

Almost surely, 2^155152620 is an apocalyptic number.

155152620 is a gapful number since it is divisible by the number (10) 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 155152620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275282280).

155152620 is an abundant number, since it is smaller than the sum of its proper divisors (395411940).

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

155152620 is a wasteful number, since it uses less digits than its factorization.

155152620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 155152620 is about 12456.0274566171. The cubic root of 155152620 is about 537.3447844593.

The spelling of 155152620 in words is "one hundred fifty-five million, one hundred fifty-two thousand, six hundred twenty".