20662610232 has 32 divisors (see below), whose sum is σ = 56352574080. Its totient is φ = 6261396960.

The previous prime is 20662610207. The next prime is 20662610239. The reversal of 20662610232 is 23201626602.

It is a self number, because there is not a number n which added to its sum of digits gives 20662610232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662610239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39133468 + ... + 39133995.

It is an arithmetic number, because the mean of its divisors is an integer number (1761017940).

Almost surely, 2^20662610232 is an apocalyptic number.

20662610232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20662610232 is an abundant number, since it is smaller than the sum of its proper divisors (35689963848).

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

20662610232 is a wasteful number, since it uses less digits than its factorization.

20662610232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78267483 (or 78267479 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 20662610232 in words is "twenty billion, six hundred sixty-two million, six hundred ten thousand, two hundred thirty-two".