56061000156 has 72 divisors (see below), whose sum is σ = 152517686160. Its totient is φ = 15980364288.

The previous prime is 56061000133. The next prime is 56061000161. The reversal of 56061000156 is 65100016065.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144510 + ... + 364698.

Almost surely, 2^56061000156 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 56061000156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76258843080).

56061000156 is an abundant number, since it is smaller than the sum of its proper divisors (96456686004).

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

56061000156 is a wasteful number, since it uses less digits than its factorization.

56061000156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220643 (or 220634 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 56061000156 in words is "fifty-six billion, sixty-one million, one hundred fifty-six", and thus it is an aban number.