1064635663 has 8 divisors (see below), whose sum is σ = 1310320928. Its totient is φ = 842349024.

The previous prime is 1064635657. The next prime is 1064635703. The reversal of 1064635663 is 3665364601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064635663 is a prime.

It is a super-2 number, since 2×1064635663² = 2266898189862899138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064635633) 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, 5849556 + ... + 5849737.

It is an arithmetic number, because the mean of its divisors is an integer number (163790116).

Almost surely, 2^1064635663 is an apocalyptic number.

1064635663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1064635663 is a deficient number, since it is larger than the sum of its proper divisors (245685265).

1064635663 is a wasteful number, since it uses less digits than its factorization.

1064635663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11699313.

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 1064635663 is about 32628.7551555373. The cubic root of 1064635663 is about 1021.0970073046.

The spelling of 1064635663 in words is "one billion, sixty-four million, six hundred thirty-five thousand, six hundred sixty-three".