20485094401 has 4 divisors (see below), whose sum is σ = 21690099972. Its totient is φ = 19280088832.

The previous prime is 20485094369. The next prime is 20485094419. The reversal of 20485094401 is 10449058402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16705304001 + 3779790400 = 129249^2 + 61480^2 .

It is a cyclic number.

It is not a de Polignac number, because 20485094401 - 2⁵ = 20485094369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20485092401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602502760 + ... + 602502793.

It is an arithmetic number, because the mean of its divisors is an integer number (5422524993).

Almost surely, 2^20485094401 is an apocalyptic number.

It is an amenable number.

20485094401 is a deficient number, since it is larger than the sum of its proper divisors (1205005571).

20485094401 is a wasteful number, since it uses less digits than its factorization.

20485094401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205005570.

The product of its (nonzero) digits is 46080, while the sum is 37.

The spelling of 20485094401 in words is "twenty billion, four hundred eighty-five million, ninety-four thousand, four hundred one".