120155851200 has 672 divisors, whose sum is σ = 507386953728. Its totient is φ = 24159744000.

The previous prime is 120155851183. The next prime is 120155851213. The reversal of 120155851200 is 2158551021.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11452357 + ... + 11462843.

Almost surely, 2^120155851200 is an apocalyptic number.

120155851200 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 120155851200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253693476864).

120155851200 is an abundant number, since it is smaller than the sum of its proper divisors (387231102528).

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

120155851200 is a wasteful number, since it uses less digits than its factorization.

120155851200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561 (or 10546 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 30.

The spelling of 120155851200 in words is "one hundred twenty billion, one hundred fifty-five million, eight hundred fifty-one thousand, two hundred".