155120105652156 has 384 divisors, whose sum is σ = 426697482731520. Its totient is φ = 48656068070400.

The previous prime is 155120105652143. The next prime is 155120105652173. The reversal of 155120105652156 is 651256501021551.

155120105652156 is a `hidden beast` number, since 1 + 5 + 5 + 1 + 2 + 0 + 10 + 565 + 21 + 56 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 48218868660 + ... + 48218871876.

It is an arithmetic number, because the mean of its divisors is an integer number (1111191361280).

Almost surely, 2^{155120105652156} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155120105652156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213348741365760).

155120105652156 is an abundant number, since it is smaller than the sum of its proper divisors (271577377079364).

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

155120105652156 is a wasteful number, since it uses less digits than its factorization.

155120105652156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702 (or 4694 counting only the distinct ones).

The product of its (nonzero) digits is 450000, while the sum is 45.

The spelling of 155120105652156 in words is "one hundred fifty-five trillion, one hundred twenty billion, one hundred five million, six hundred fifty-two thousand, one hundred fifty-six".