5565015612 has 72 divisors (see below), whose sum is σ = 15169793184. Its totient is φ = 1709986176.

The previous prime is 5565015607. The next prime is 5565015613. The reversal of 5565015612 is 2165105655.

5565015612 is a `hidden beast` number, since 556 + 50 + 1 + 56 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5565015613) 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, 354073 + ... + 369455.

It is an arithmetic number, because the mean of its divisors is an integer number (210691572).

Almost surely, 2^5565015612 is an apocalyptic number.

5565015612 is a gapful number since it is divisible by the number (52) 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 5565015612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7584896592).

5565015612 is an abundant number, since it is smaller than the sum of its proper divisors (9604777572).

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

5565015612 is a wasteful number, since it uses less digits than its factorization.

5565015612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16179 (or 16174 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 5565015612 is about 74599.0322457336. The cubic root of 5565015612 is about 1772.1023262472.

The spelling of 5565015612 in words is "five billion, five hundred sixty-five million, fifteen thousand, six hundred twelve".