18816662026 has 8 divisors (see below), whose sum is σ = 28431015300. Its totient is φ = 9339656928.

The previous prime is 18816661961. The next prime is 18816662071. The reversal of 18816662026 is 62026661881.

It can be written as a sum of positive squares in 2 ways, for example, as 17949300625 + 867361401 = 133975^2 + 29451^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34336701 + ... + 34337248.

Almost surely, 2^18816662026 is an apocalyptic number.

18816662026 is a deficient number, since it is larger than the sum of its proper divisors (9614353274).

18816662026 is a wasteful number, since it uses less digits than its factorization.

18816662026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68674088.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 18816662026 in words is "eighteen billion, eight hundred sixteen million, six hundred sixty-two thousand, twenty-six".