1056566616 has 96 divisors (see below), whose sum is σ = 3080093040. Its totient is φ = 301147392.

The previous prime is 1056566591. The next prime is 1056566629. The reversal of 1056566616 is 6166656501.

It is a super-2 number, since 2×1056566616² = 2232666028091382912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 654226 + ... + 655838.

Almost surely, 2^1056566616 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 1056566616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540046520).

1056566616 is an abundant number, since it is smaller than the sum of its proper divisors (2023526424).

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

1056566616 is a wasteful number, since it uses less digits than its factorization.

1056566616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193 (or 2182 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 1056566616 is about 32504.8706504118. The cubic root of 1056566616 is about 1018.5107756208.

The spelling of 1056566616 in words is "one billion, fifty-six million, five hundred sixty-six thousand, six hundred sixteen".