20615136030536 has 16 divisors (see below), whose sum is σ = 39552295873200. Its totient is φ = 10067857131024.

The previous prime is 20615136030509. The next prime is 20615136030539. The reversal of 20615136030536 is 63503063151602.

It is a junction number, because it is equal to n+sod(n) for n = 20615136030493 and 20615136030502.

It is not an unprimeable number, because it can be changed into a prime (20615136030539) 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, 29963860166 + ... + 29963860853.

It is an arithmetic number, because the mean of its divisors is an integer number (2472018492075).

Almost surely, 2^{20615136030536} is an apocalyptic number.

It is an amenable number.

20615136030536 is a deficient number, since it is larger than the sum of its proper divisors (18937159842664).

20615136030536 is a wasteful number, since it uses less digits than its factorization.

20615136030536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59927721068 (or 59927721064 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 20615136030536 in words is "twenty trillion, six hundred fifteen billion, one hundred thirty-six million, thirty thousand, five hundred thirty-six".