20552166994 has 8 divisors (see below), whose sum is σ = 32168609280. Its totient is φ = 9829297236.

The previous prime is 20552166923. The next prime is 20552167021. The reversal of 20552166994 is 49966125502.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 223393074 + ... + 223393165.

It is an arithmetic number, because the mean of its divisors is an integer number (4021076160).

Almost surely, 2^20552166994 is an apocalyptic number.

20552166994 is a deficient number, since it is larger than the sum of its proper divisors (11616442286).

20552166994 is a wasteful number, since it uses less digits than its factorization.

20552166994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446786264.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 20552166994 in words is "twenty billion, five hundred fifty-two million, one hundred sixty-six thousand, nine hundred ninety-four".