1623664010099 has 2 divisors, whose sum is σ = 1623664010100. Its totient is φ = 1623664010098.

The previous prime is 1623664009991. The next prime is 1623664010123. The reversal of 1623664010099 is 9900104663261.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9900104663261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1623664010099 - 2²⁰ = 1623662961523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1623664010299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811832005049 + 811832005050.

It is an arithmetic number, because the mean of its divisors is an integer number (811832005050).

Almost surely, 2^{1623664010099} is an apocalyptic number.

1623664010099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623664010099 is an equidigital number, since it uses as much as digits as its factorization.

1623664010099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 47.

The spelling of 1623664010099 in words is "one trillion, six hundred twenty-three billion, six hundred sixty-four million, ten thousand, ninety-nine".