20056406615 has 8 divisors (see below), whose sum is σ = 27505929120. Its totient is φ = 13752964512.

The previous prime is 20056406561. The next prime is 20056406627. The reversal of 20056406615 is 51660465002.

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

It is not a de Polignac number, because 20056406615 - 2⁶ = 20056406551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 573040189 = 20056406615 / (2 + 0 + 0 + 5 + 6 + 4 + 0 + 6 + 6 + 1 + 5).

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, 286520060 + ... + 286520129.

It is an arithmetic number, because the mean of its divisors is an integer number (3438241140).

Almost surely, 2^20056406615 is an apocalyptic number.

20056406615 is a deficient number, since it is larger than the sum of its proper divisors (7449522505).

20056406615 is an equidigital number, since it uses as much as digits as its factorization.

20056406615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573040201.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 20056406615 in words is "twenty billion, fifty-six million, four hundred six thousand, six hundred fifteen".