155630261162320 has 80 divisors (see below), whose sum is σ = 414078115125888. Its totient is φ = 53288459159040.

The previous prime is 155630261162261. The next prime is 155630261162333. The reversal of 155630261162320 is 23261162036551.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183136966 + ... + 183984805.

Almost surely, 2^{155630261162320} is an apocalyptic number.

155630261162320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155630261162320 is an abundant number, since it is smaller than the sum of its proper divisors (258447853963568).

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

155630261162320 is a wasteful number, since it uses less digits than its factorization.

155630261162320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367122548 (or 367122542 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 155630261162320 in words is "one hundred fifty-five trillion, six hundred thirty billion, two hundred sixty-one million, one hundred sixty-two thousand, three hundred twenty".