20312006760 has 144 divisors (see below), whose sum is σ = 67019343300. Its totient is φ = 5335266816.

The previous prime is 20312006749. The next prime is 20312006801. The reversal of 20312006760 is 6760021302.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18791474724 + 1520532036 = 137082^2 + 38994^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1609756 + ... + 1622324.

Almost surely, 2^20312006760 is an apocalyptic number.

20312006760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20312006760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33509671650).

20312006760 is an abundant number, since it is smaller than the sum of its proper divisors (46707336540).

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

20312006760 is a wasteful number, since it uses less digits than its factorization.

20312006760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12720 (or 12646 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The spelling of 20312006760 in words is "twenty billion, three hundred twelve million, six thousand, seven hundred sixty".