20146994099 has 2 divisors, whose sum is σ = 20146994100. Its totient is φ = 20146994098.

The previous prime is 20146994081. The next prime is 20146994111. The reversal of 20146994099 is 99049964102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20146994099 - 2³² = 15852026803 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20146994099.

It is not a weakly prime, because it can be changed into another prime (20146994029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10073497049 + 10073497050.

It is an arithmetic number, because the mean of its divisors is an integer number (10073497050).

Almost surely, 2^20146994099 is an apocalyptic number.

20146994099 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146994099 is an equidigital number, since it uses as much as digits as its factorization.

20146994099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 53.

The spelling of 20146994099 in words is "twenty billion, one hundred forty-six million, nine hundred ninety-four thousand, ninety-nine".