20885458802 has 16 divisors (see below), whose sum is σ = 33742020312. Its totient is φ = 9638307840.

The previous prime is 20885458777. The next prime is 20885458807.

20885458802 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 19088461921 + 1796996881 = 138161^2 + 42391^2 .

It is not an unprimeable number, because it can be changed into a prime (20885458807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202802 + ... + 287922.

Almost surely, 2^20885458802 is an apocalyptic number.

20885458802 is a deficient number, since it is larger than the sum of its proper divisors (12856561510).

20885458802 is a wasteful number, since it uses less digits than its factorization.

20885458802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94573.

The product of its (nonzero) digits is 1638400, while the sum is 50.

The spelling of 20885458802 in words is "twenty billion, eight hundred eighty-five million, four hundred fifty-eight thousand, eight hundred two".