155550552023430 has 96 divisors (see below), whose sum is σ = 404587707563520. Its totient is φ = 41464121647680.

The previous prime is 155550552023357. The next prime is 155550552023443. The reversal of 155550552023430 is 34320255055551.

It is a happy number.

155550552023430 is a `hidden beast` number, since 1 + 5 + 5 + 5 + 5 + 0 + 5 + 5 + 202 + 3 + 430 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 5751957489 + ... + 5751984531.

It is an arithmetic number, because the mean of its divisors is an integer number (4214455287120).

Almost surely, 2^{155550552023430} is an apocalyptic number.

155550552023430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155550552023430 is an abundant number, since it is smaller than the sum of its proper divisors (249037155540090).

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

155550552023430 is a wasteful number, since it uses less digits than its factorization.

155550552023430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49386 (or 49383 counting only the distinct ones).

The product of its (nonzero) digits is 2250000, while the sum is 45.

The spelling of 155550552023430 in words is "one hundred fifty-five trillion, five hundred fifty billion, five hundred fifty-two million, twenty-three thousand, four hundred thirty".