56116615605066 has 16 divisors (see below), whose sum is σ = 124703590233600. Its totient is φ = 18705538535004.

The previous prime is 56116615605053. The next prime is 56116615605097. The reversal of 56116615605066 is 66050651661165.

56116615605066 is a `hidden beast` number, since 5 + 6 + 1 + 1 + 66 + 15 + 60 + 506 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1039196585279 = 56116615605066 / (5 + 6 + 1 + 1 + 6 + 6 + 1 + 5 + 6 + 0 + 5 + 0 + 6 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519598292586 + ... + 519598292693.

It is an arithmetic number, because the mean of its divisors is an integer number (7793974389600).

Almost surely, 2^{56116615605066} is an apocalyptic number.

56116615605066 is an abundant number, since it is smaller than the sum of its proper divisors (68586974628534).

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

56116615605066 is a wasteful number, since it uses less digits than its factorization.

56116615605066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039196585290 (or 1039196585284 counting only the distinct ones).

The product of its (nonzero) digits is 5832000, while the sum is 54.

The spelling of 56116615605066 in words is "fifty-six trillion, one hundred sixteen billion, six hundred fifteen million, six hundred five thousand, sixty-six".