1064556645 has 16 divisors (see below), whose sum is σ = 1712212992. Its totient is φ = 564789440.

The previous prime is 1064556613. The next prime is 1064556671. The reversal of 1064556645 is 5466554601.

It is not a de Polignac number, because 1064556645 - 2⁵ = 1064556613 is a prime.

It is a super-2 number, since 2×1064556645² = 2266561700827312050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1064556597 and 1064556606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182922 + ... + 188651.

It is an arithmetic number, because the mean of its divisors is an integer number (107013312).

Almost surely, 2^1064556645 is an apocalyptic number.

1064556645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1064556645 is a deficient number, since it is larger than the sum of its proper divisors (647656347).

1064556645 is a wasteful number, since it uses less digits than its factorization.

1064556645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371772.

The product of its (nonzero) digits is 432000, while the sum is 42.

The square root of 1064556645 is about 32627.5442686084. The cubic root of 1064556645 is about 1021.0717445027.

The spelling of 1064556645 in words is "one billion, sixty-four million, five hundred fifty-six thousand, six hundred forty-five".