20037215012 has 6 divisors (see below), whose sum is σ = 35065126278. Its totient is φ = 10018607504.

The previous prime is 20037214993. The next prime is 20037215027. The reversal of 20037215012 is 21051273002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11106208996 + 8931006016 = 105386^2 + 94504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2504651873 + ... + 2504651880.

It is an arithmetic number, because the mean of its divisors is an integer number (5844187713).

Almost surely, 2^20037215012 is an apocalyptic number.

It is an amenable number.

20037215012 is a deficient number, since it is larger than the sum of its proper divisors (15027911266).

20037215012 is a wasteful number, since it uses less digits than its factorization.

20037215012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009303757 (or 5009303755 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

Adding to 20037215012 its reverse (21051273002), we get a palindrome (41088488014).

The spelling of 20037215012 in words is "twenty billion, thirty-seven million, two hundred fifteen thousand, twelve".