21659007130 has 16 divisors (see below), whose sum is σ = 38989270944. Its totient is φ = 8662923280.

The previous prime is 21659007109. The next prime is 21659007143. The reversal of 21659007130 is 3170095612.

It is a super-2 number, since 2×21659007130² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 60825 + ... + 216835.

It is an arithmetic number, because the mean of its divisors is an integer number (2436829434).

Almost surely, 2^21659007130 is an apocalyptic number.

21659007130 is a deficient number, since it is larger than the sum of its proper divisors (17330263814).

21659007130 is a wasteful number, since it uses less digits than its factorization.

21659007130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169901.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 21659007130 in words is "twenty-one billion, six hundred fifty-nine million, seven thousand, one hundred thirty".