1059664639 has 12 divisors (see below), whose sum is σ = 1193169600. Its totient is φ = 939831200.

The previous prime is 1059664591. The next prime is 1059664649. The reversal of 1059664639 is 9364669501.

It is not a de Polignac number, because 1059664639 - 2²¹ = 1057567487 is a prime.

It is a super-2 number, since 2×1059664639² = 2245778294294000642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1059664592 and 1059664601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059664649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101839 + ... + 111760.

It is an arithmetic number, because the mean of its divisors is an integer number (99430800).

Almost surely, 2^1059664639 is an apocalyptic number.

1059664639 is a deficient number, since it is larger than the sum of its proper divisors (133504961).

1059664639 is a wasteful number, since it uses less digits than its factorization.

1059664639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213662 (or 213651 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 49.

The square root of 1059664639 is about 32552.4905191600. The cubic root of 1059664639 is about 1019.5052832893.

The spelling of 1059664639 in words is "one billion, fifty-nine million, six hundred sixty-four thousand, six hundred thirty-nine".