20615160404 has 6 divisors (see below), whose sum is σ = 36076530714. Its totient is φ = 10307580200.

The previous prime is 20615160353. The next prime is 20615160409. The reversal of 20615160404 is 40406151602.

It can be written as a sum of positive squares in only one way, i.e., 17916357904 + 2698802500 = 133852^2 + 51950^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20615160409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2576895047 + ... + 2576895054.

It is an arithmetic number, because the mean of its divisors is an integer number (6012755119).

Almost surely, 2^20615160404 is an apocalyptic number.

It is an amenable number.

20615160404 is a deficient number, since it is larger than the sum of its proper divisors (15461370310).

20615160404 is a wasteful number, since it uses less digits than its factorization.

20615160404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153790105 (or 5153790103 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 20615160404 in words is "twenty billion, six hundred fifteen million, one hundred sixty thousand, four hundred four".