56166156 has 96 divisors (see below), whose sum is σ = 153216000. Its totient is φ = 17769024.

The previous prime is 56166151. The next prime is 56166163. The reversal of 56166156 is 65166165.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56166156.

It is not an unprimeable number, because it can be changed into a prime (56166151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247315 + ... + 247541.

It is an arithmetic number, because the mean of its divisors is an integer number (1596000).

Almost surely, 2^56166156 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 56166156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76608000).

56166156 is an abundant number, since it is smaller than the sum of its proper divisors (97049844).

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

56166156 is a wasteful number, since it uses less digits than its factorization.

56166156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 340 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 56166156 is about 7494.4083155377. The cubic root of 56166156 is about 382.9642498336.

Subtracting 56166156 from its reverse (65166165), we obtain a palindrome (9000009).

The spelling of 56166156 in words is "fifty-six million, one hundred sixty-six thousand, one hundred fifty-six".