1056156566 has 8 divisors (see below), whose sum is σ = 1589833704. Its totient is φ = 526212000.

The previous prime is 1056156557. The next prime is 1056156571. The reversal of 1056156566 is 6656516501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1056156566² = 2230933383809824712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932435 + ... + 933566.

It is an arithmetic number, because the mean of its divisors is an integer number (198729213).

Almost surely, 2^1056156566 is an apocalyptic number.

1056156566 is a deficient number, since it is larger than the sum of its proper divisors (533677138).

1056156566 is a wasteful number, since it uses less digits than its factorization.

1056156566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866286.

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 1056156566 is about 32498.5625220563. The cubic root of 1056156566 is about 1018.3789983537.

The spelling of 1056156566 in words is "one billion, fifty-six million, one hundred fifty-six thousand, five hundred sixty-six".