20601166404 has 96 divisors (see below), whose sum is σ = 62276193280. Its totient is φ = 5147307648.

The previous prime is 20601166367. The next prime is 20601166429. The reversal of 20601166404 is 40466110602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475714 + ... + 517209.

Almost surely, 2^20601166404 is an apocalyptic number.

It is an amenable number.

20601166404 is an abundant number, since it is smaller than the sum of its proper divisors (41675026876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20601166404 is a wasteful number, since it uses less digits than its factorization.

20601166404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992969 (or 992967 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 20601166404 in words is "twenty billion, six hundred one million, one hundred sixty-six thousand, four hundred four".