20653332662 has 4 divisors (see below), whose sum is σ = 30979998996. Its totient is φ = 10326666330.

The previous prime is 20653332659. The next prime is 20653332683. The reversal of 20653332662 is 26623335602.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5163333164 + ... + 5163333167.

It is an arithmetic number, because the mean of its divisors is an integer number (7744999749).

Almost surely, 2^20653332662 is an apocalyptic number.

20653332662 is a deficient number, since it is larger than the sum of its proper divisors (10326666334).

20653332662 is a wasteful number, since it uses less digits than its factorization.

20653332662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326666333.

The product of its (nonzero) digits is 233280, while the sum is 38.

The spelling of 20653332662 in words is "twenty billion, six hundred fifty-three million, three hundred thirty-two thousand, six hundred sixty-two".