155205564030 has 96 divisors (see below), whose sum is σ = 444333921408. Its totient is φ = 37273924800.

The previous prime is 155205564011. The next prime is 155205564061. The reversal of 155205564030 is 30465502551.

155205564030 is a `hidden beast` number, since 1 + 5 + 5 + 2 + 0 + 5 + 5 + 640 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 626656 + ... + 838515.

It is an arithmetic number, because the mean of its divisors is an integer number (4628478348).

Almost surely, 2^155205564030 is an apocalyptic number.

155205564030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155205564030 is an abundant number, since it is smaller than the sum of its proper divisors (289128357378).

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

155205564030 is a wasteful number, since it uses less digits than its factorization.

155205564030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465302 (or 1465299 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 155205564030 in words is "one hundred fifty-five billion, two hundred five million, five hundred sixty-four thousand, thirty".