21096148495699 has 2 divisors, whose sum is σ = 21096148495700. Its totient is φ = 21096148495698.

The previous prime is 21096148495573. The next prime is 21096148495729. The reversal of 21096148495699 is 99659484169012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21096148495699 - 2⁹ = 21096148495187 is a prime.

It is not a weakly prime, because it can be changed into another prime (21096148493699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10548074247849 + 10548074247850.

It is an arithmetic number, because the mean of its divisors is an integer number (10548074247850).

Almost surely, 2^{21096148495699} is an apocalyptic number.

21096148495699 is a deficient number, since it is larger than the sum of its proper divisors (1).

21096148495699 is an equidigital number, since it uses as much as digits as its factorization.

21096148495699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302330880, while the sum is 73.

The spelling of 21096148495699 in words is "twenty-one trillion, ninety-six billion, one hundred forty-eight million, four hundred ninety-five thousand, six hundred ninety-nine".