20011515036 has 48 divisors (see below), whose sum is σ = 46898197248. Its totient is φ = 6641308800.

The previous prime is 20011515019. The next prime is 20011515071. The reversal of 20011515036 is 63051511002.

It is a junction number, because it is equal to n+sod(n) for n = 20011514997 and 20011515015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7993761 + ... + 7996263.

It is an arithmetic number, because the mean of its divisors is an integer number (977045776).

Almost surely, 2^20011515036 is an apocalyptic number.

It is an amenable number.

20011515036 is an abundant number, since it is smaller than the sum of its proper divisors (26886682212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20011515036 is a wasteful number, since it uses less digits than its factorization.

20011515036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162 (or 5160 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 20011515036 in words is "twenty billion, eleven million, five hundred fifteen thousand, thirty-six".