20104656406315 has 32 divisors (see below), whose sum is σ = 26002611411840. Its totient is φ = 14834400086016.

The previous prime is 20104656406313. The next prime is 20104656406339. The reversal of 20104656406315 is 51360465640102.

It is a cyclic number.

It is not a de Polignac number, because 20104656406315 - 2¹ = 20104656406313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20104656406313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 544631299 + ... + 544668211.

It is an arithmetic number, because the mean of its divisors is an integer number (812581606620).

Almost surely, 2^{20104656406315} is an apocalyptic number.

20104656406315 is a deficient number, since it is larger than the sum of its proper divisors (5897955005525).

20104656406315 is a wasteful number, since it uses less digits than its factorization.

20104656406315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43543.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 20104656406315 in words is "twenty trillion, one hundred four billion, six hundred fifty-six million, four hundred six thousand, three hundred fifteen".