20650157005 has 8 divisors (see below), whose sum is σ = 24788286432. Its totient is φ = 16514726928.

The previous prime is 20650156981. The next prime is 20650157041. The reversal of 20650157005 is 50075105602.

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

It is a cyclic number.

It is not a de Polignac number, because 20650157005 - 2²¹ = 20648059853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 657967 + ... + 688636.

It is an arithmetic number, because the mean of its divisors is an integer number (3098535804).

Almost surely, 2^20650157005 is an apocalyptic number.

It is an amenable number.

20650157005 is a deficient number, since it is larger than the sum of its proper divisors (4138129427).

20650157005 is a wasteful number, since it uses less digits than its factorization.

20650157005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349675.

The product of its (nonzero) digits is 10500, while the sum is 31.

The spelling of 20650157005 in words is "twenty billion, six hundred fifty million, one hundred fifty-seven thousand, five".