20112055615 has 8 divisors (see below), whose sum is σ = 25554141360. Its totient is φ = 15143194752.

The previous prime is 20112055583. The next prime is 20112055637. The reversal of 20112055615 is 51655021102.

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 20112055615 - 2⁵ = 20112055583 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118306125 + ... + 118306294.

It is an arithmetic number, because the mean of its divisors is an integer number (3194267670).

Almost surely, 2^20112055615 is an apocalyptic number.

20112055615 is a deficient number, since it is larger than the sum of its proper divisors (5442085745).

20112055615 is a wasteful number, since it uses less digits than its factorization.

20112055615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236612441.

The product of its (nonzero) digits is 3000, while the sum is 28.

Adding to 20112055615 its reverse (51655021102), we get a palindrome (71767076717).

The spelling of 20112055615 in words is "twenty billion, one hundred twelve million, fifty-five thousand, six hundred fifteen".