20941413599 has 2 divisors, whose sum is σ = 20941413600. Its totient is φ = 20941413598.

The previous prime is 20941413557. The next prime is 20941413607. The reversal of 20941413599 is 99531414902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20941413599 - 2¹⁶ = 20941348063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20941413499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10470706799 + 10470706800.

It is an arithmetic number, because the mean of its divisors is an integer number (10470706800).

Almost surely, 2^20941413599 is an apocalyptic number.

20941413599 is a deficient number, since it is larger than the sum of its proper divisors (1).

20941413599 is an equidigital number, since it uses as much as digits as its factorization.

20941413599 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The spelling of 20941413599 in words is "twenty billion, nine hundred forty-one million, four hundred thirteen thousand, five hundred ninety-nine".