20513235662 has 8 divisors (see below), whose sum is σ = 30772912800. Its totient is φ = 10255598064.

The previous prime is 20513235641. The next prime is 20513235671. The reversal of 20513235662 is 26653231502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484487 + ... + 525122.

It is an arithmetic number, because the mean of its divisors is an integer number (3846614100).

Almost surely, 2^20513235662 is an apocalyptic number.

20513235662 is a deficient number, since it is larger than the sum of its proper divisors (10259677138).

20513235662 is a wasteful number, since it uses less digits than its factorization.

20513235662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019770.

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20513235662 in words is "twenty billion, five hundred thirteen million, two hundred thirty-five thousand, six hundred sixty-two".