56215602144 has 144 divisors (see below), whose sum is σ = 175078940400. Its totient is φ = 17003870208.

The previous prime is 56215602143. The next prime is 56215602181. The reversal of 56215602144 is 44120651265.

56215602144 is a `hidden beast` number, since 5 + 6 + 2 + 1 + 5 + 602 + 1 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is a junction number, because it is equal to n+sod(n) for n = 56215602099 and 56215602108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56215602143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93652 + ... + 348140.

It is an arithmetic number, because the mean of its divisors is an integer number (1215825975).

Almost surely, 2^56215602144 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 56215602144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87539470200).

56215602144 is an abundant number, since it is smaller than the sum of its proper divisors (118863338256).

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

56215602144 is a wasteful number, since it uses less digits than its factorization.

56215602144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254577 (or 254566 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 56215602144 in words is "fifty-six billion, two hundred fifteen million, six hundred two thousand, one hundred forty-four".