22660063491 has 16 divisors (see below), whose sum is σ = 32702703264. Its totient is φ = 13873864704.

The previous prime is 22660063477. The next prime is 22660063553. The reversal of 22660063491 is 19436006622.

It is not a de Polignac number, because 22660063491 - 2¹⁴ = 22660047107 is a prime.

It is a super-2 number, since 2×22660063491² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (22660063091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1467006 + ... + 1482371.

It is an arithmetic number, because the mean of its divisors is an integer number (2043918954).

Almost surely, 2^22660063491 is an apocalyptic number.

22660063491 is a deficient number, since it is larger than the sum of its proper divisors (10042639773).

22660063491 is a wasteful number, since it uses less digits than its factorization.

22660063491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949590.

The product of its (nonzero) digits is 93312, while the sum is 39.

The spelling of 22660063491 in words is "twenty-two billion, six hundred sixty million, sixty-three thousand, four hundred ninety-one".