20660132502 has 12 divisors (see below), whose sum is σ = 44763620460. Its totient is φ = 6886710828.

The previous prime is 20660132459. The next prime is 20660132539. The reversal of 20660132502 is 20523106602.

20660132502 is a `hidden beast` number, since 2 + 0 + 6 + 601 + 3 + 2 + 50 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573892552 + ... + 573892587.

It is an arithmetic number, because the mean of its divisors is an integer number (3730301705).

Almost surely, 2^20660132502 is an apocalyptic number.

20660132502 is an abundant number, since it is smaller than the sum of its proper divisors (24103487958).

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

20660132502 is a wasteful number, since it uses less digits than its factorization.

20660132502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147785147 (or 1147785144 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The spelling of 20660132502 in words is "twenty billion, six hundred sixty million, one hundred thirty-two thousand, five hundred two".