20136603015 has 12 divisors (see below), whose sum is σ = 34903445304. Its totient is φ = 10739521584.

The previous prime is 20136603001. The next prime is 20136603043. The reversal of 20136603015 is 51030663102.

20136603015 is a `hidden beast` number, since 20 + 1 + 36 + 603 + 0 + 1 + 5 = 666.

It is not a de Polignac number, because 20136603015 - 2⁹ = 20136602503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20136603015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223739989 + ... + 223740078.

It is an arithmetic number, because the mean of its divisors is an integer number (2908620442).

Almost surely, 2^20136603015 is an apocalyptic number.

20136603015 is a deficient number, since it is larger than the sum of its proper divisors (14766842289).

20136603015 is a wasteful number, since it uses less digits than its factorization.

20136603015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447480078 (or 447480075 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 20136603015 in words is "twenty billion, one hundred thirty-six million, six hundred three thousand, fifteen".