155056571134200 has 432 divisors, whose sum is σ = 562233154518360. Its totient is φ = 38278181376000.

The previous prime is 155056571134111. The next prime is 155056571134219. The reversal of 155056571134200 is 2431175650551.

155056571134200 is a `hidden beast` number, since 1 + 5 + 5 + 0 + 56 + 571 + 1 + 3 + 4 + 20 + 0 = 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 107 ways as a sum of consecutive naturals, for example, 29288995 + ... + 34175405.

Almost surely, 2^{155056571134200} is an apocalyptic number.

155056571134200 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 155056571134200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281116577259180).

155056571134200 is an abundant number, since it is smaller than the sum of its proper divisors (407176583384160).

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

155056571134200 is a wasteful number, since it uses less digits than its factorization.

155056571134200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4886528 (or 4886499 counting only the distinct ones).

The product of its (nonzero) digits is 630000, while the sum is 45.

The spelling of 155056571134200 in words is "one hundred fifty-five trillion, fifty-six billion, five hundred seventy-one million, one hundred thirty-four thousand, two hundred".