20406087475199 has 2 divisors, whose sum is σ = 20406087475200. Its totient is φ = 20406087475198.

The previous prime is 20406087475181. The next prime is 20406087475217. The reversal of 20406087475199 is 99157478060402.

It is a balanced prime because it is at equal distance from previous prime (20406087475181) and next prime (20406087475217).

It is a cyclic number.

It is not a de Polignac number, because 20406087475199 - 2⁴⁴ = 2813901430783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20406087475129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10203043737599 + 10203043737600.

It is an arithmetic number, because the mean of its divisors is an integer number (10203043737600).

Almost surely, 2^{20406087475199} is an apocalyptic number.

20406087475199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20406087475199 is an equidigital number, since it uses as much as digits as its factorization.

20406087475199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 20406087475199 in words is "twenty trillion, four hundred six billion, eighty-seven million, four hundred seventy-five thousand, one hundred ninety-nine".