155880897649200 has 960 divisors, whose sum is σ = 619310601584640. Its totient is φ = 37055397888000.

The previous prime is 155880897649187. The next prime is 155880897649259. The reversal of 155880897649200 is 2946798088551.

155880897649200 is a `hidden beast` number, since 1 + 5 + 58 + 8 + 0 + 89 + 7 + 6 + 492 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 267213840 + ... + 267796560.

It is an arithmetic number, because the mean of its divisors is an integer number (645115209984).

Almost surely, 2^{155880897649200} is an apocalyptic number.

155880897649200 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 155880897649200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309655300792320).

155880897649200 is an abundant number, since it is smaller than the sum of its proper divisors (463429703935440).

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

155880897649200 is a wasteful number, since it uses less digits than its factorization.

155880897649200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582843 (or 582826 counting only the distinct ones).

The product of its (nonzero) digits is 348364800, while the sum is 72.

The spelling of 155880897649200 in words is "one hundred fifty-five trillion, eight hundred eighty billion, eight hundred ninety-seven million, six hundred forty-nine thousand, two hundred".