56216020700 has 72 divisors (see below), whose sum is σ = 139861694112. Its totient is φ = 19212410880.

The previous prime is 56216020691. The next prime is 56216020723. The reversal of 56216020700 is 702061265.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90812 + ... + 347388.

Almost surely, 2^56216020700 is an apocalyptic number.

56216020700 is a gapful number since it is divisible by the number (50) 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 56216020700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69930847056).

56216020700 is an abundant number, since it is smaller than the sum of its proper divisors (83645673412).

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

56216020700 is a wasteful number, since it uses less digits than its factorization.

56216020700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256911 (or 256904 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 56216020700 its reverse (702061265), we get a palindrome (56918081965).

The spelling of 56216020700 in words is "fifty-six billion, two hundred sixteen million, twenty thousand, seven hundred".