20993411175619 has 2 divisors, whose sum is σ = 20993411175620. Its totient is φ = 20993411175618.

The previous prime is 20993411175613. The next prime is 20993411175641. The reversal of 20993411175619 is 91657111439902.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20993411175619 - 2²³ = 20993402787011 is a prime.

It is a super-2 number, since 2×20993411175619² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20993411175613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10496705587809 + 10496705587810.

It is an arithmetic number, because the mean of its divisors is an integer number (10496705587810).

Almost surely, 2^{20993411175619} is an apocalyptic number.

20993411175619 is a deficient number, since it is larger than the sum of its proper divisors (1).

20993411175619 is an equidigital number, since it uses as much as digits as its factorization.

20993411175619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 58.

The spelling of 20993411175619 in words is "twenty trillion, nine hundred ninety-three billion, four hundred eleven million, one hundred seventy-five thousand, six hundred nineteen".