1056644164 has 6 divisors (see below), whose sum is σ = 1849127294. Its totient is φ = 528322080.

The previous prime is 1056644137. The next prime is 1056644167. The reversal of 1056644164 is 4614466501.

It can be written as a sum of positive squares in only one way, i.e., 808833600 + 247810564 = 28440^2 + 15742^2 .

It is a super-2 number, since 2×1056644164² = 2232993778630517792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1056644167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132080517 + ... + 132080524.

Almost surely, 2^1056644164 is an apocalyptic number.

It is an amenable number.

1056644164 is a deficient number, since it is larger than the sum of its proper divisors (792483130).

1056644164 is a wasteful number, since it uses less digits than its factorization.

1056644164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264161045 (or 264161043 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 1056644164 is about 32506.0634959080. The cubic root of 1056644164 is about 1018.5356932929.

The spelling of 1056644164 in words is "one billion, fifty-six million, six hundred forty-four thousand, one hundred sixty-four".