1056670663 has 8 divisors (see below), whose sum is σ = 1061828928. Its totient is φ = 1051521024.

The previous prime is 1056670661. The next prime is 1056670673. The reversal of 1056670663 is 3660766501.

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

It is a cyclic number.

It is not a de Polignac number, because 1056670663 - 2¹ = 1056670661 is a prime.

It is a super-2 number, since 2×1056670663² = 2233105780089719138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056670661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 511170 + ... + 513232.

It is an arithmetic number, because the mean of its divisors is an integer number (132728616).

Almost surely, 2^1056670663 is an apocalyptic number.

1056670663 is a deficient number, since it is larger than the sum of its proper divisors (5158265).

1056670663 is a wasteful number, since it uses less digits than its factorization.

1056670663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 1056670663 is about 32506.4710942298. The cubic root of 1056670663 is about 1018.5442076545.

The spelling of 1056670663 in words is "one billion, fifty-six million, six hundred seventy thousand, six hundred sixty-three".