56615605000 has 80 divisors (see below), whose sum is σ = 133466089680. Its totient is φ = 22506984000.

The previous prime is 56615604979. The next prime is 56615605001. The reversal of 56615605000 is 50651665.

It is a super-3 number, since 3×56615605000³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (56615605001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 780267 + ... + 849733.

It is an arithmetic number, because the mean of its divisors is an integer number (1668326121).

Almost surely, 2^56615605000 is an apocalyptic number.

56615605000 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 56615605000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66733044840).

56615605000 is an abundant number, since it is smaller than the sum of its proper divisors (76850484680).

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

56615605000 is a wasteful number, since it uses less digits than its factorization.

56615605000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69656 (or 69637 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The spelling of 56615605000 in words is "fifty-six billion, six hundred fifteen million, six hundred five thousand".