56703632220 has 144 divisors (see below), whose sum is σ = 179946119808. Its totient is φ = 14438200320.

The previous prime is 56703632147. The next prime is 56703632231. The reversal of 56703632220 is 2223630765.

It is a happy number.

56703632220 is a `hidden beast` number, since 5 + 6 + 70 + 363 + 2 + 220 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265122 + ... + 428598.

It is an arithmetic number, because the mean of its divisors is an integer number (1249625832).

Almost surely, 2^56703632220 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 56703632220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89973059904).

56703632220 is an abundant number, since it is smaller than the sum of its proper divisors (123242487588).

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

56703632220 is a wasteful number, since it uses less digits than its factorization.

56703632220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163580 (or 163575 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 36.

The spelling of 56703632220 in words is "fifty-six billion, seven hundred three million, six hundred thirty-two thousand, two hundred twenty".