20085657562 has 8 divisors (see below), whose sum is σ = 30541205556. Its totient is φ = 9905255712.

The previous prime is 20085657517. The next prime is 20085657583. The reversal of 20085657562 is 26575658002.

It can be written as a sum of positive squares in 2 ways, for example, as 18474518241 + 1611139321 = 135921^2 + 40139^2 .

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

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, 68786353 + ... + 68786644.

Almost surely, 2^20085657562 is an apocalyptic number.

20085657562 is a deficient number, since it is larger than the sum of its proper divisors (10455547994).

20085657562 is a wasteful number, since it uses less digits than its factorization.

20085657562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137573072.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 20085657562 in words is "twenty billion, eighty-five million, six hundred fifty-seven thousand, five hundred sixty-two".