1064635556 has 12 divisors (see below), whose sum is σ = 1863366960. Its totient is φ = 532245000.

The previous prime is 1064635553. The next prime is 1064635567. The reversal of 1064635556 is 6555364601.

It is a super-2 number, since 2×1064635556² = 2266897734198858272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064635553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27431 + ... + 53681.

It is an arithmetic number, because the mean of its divisors is an integer number (155280580).

Almost surely, 2^1064635556 is an apocalyptic number.

It is an amenable number.

1064635556 is a deficient number, since it is larger than the sum of its proper divisors (798731404).

1064635556 is a wasteful number, since it uses less digits than its factorization.

1064635556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36394 (or 36392 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 1064635556 is about 32628.7535158792. The cubic root of 1064635556 is about 1021.0969730966.

The spelling of 1064635556 in words is "one billion, sixty-four million, six hundred thirty-five thousand, five hundred fifty-six".