20012715036 has 42 divisors (see below), whose sum is σ = 52509363872. Its totient is φ = 6670904040.

The previous prime is 20012715031. The next prime is 20012715071. The reversal of 20012715036 is 63051721002.

It is a happy number.

It is a super-2 number, since 2×20012715036² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012715031) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 3428620 + ... + 3434451.

Almost surely, 2^20012715036 is an apocalyptic number.

It is an amenable number.

20012715036 is an abundant number, since it is smaller than the sum of its proper divisors (32496648836).

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

20012715036 is an equidigital number, since it uses as much as digits as its factorization.

20012715036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6863093 (or 6863076 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The spelling of 20012715036 in words is "twenty billion, twelve million, seven hundred fifteen thousand, thirty-six".