16801624097 has 2 divisors, whose sum is σ = 16801624098. Its totient is φ = 16801624096.

The previous prime is 16801623997. The next prime is 16801624129. The reversal of 16801624097 is 79042610861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9636170896 + 7165453201 = 98164^2 + 84649^2 .

It is a cyclic number.

It is not a de Polignac number, because 16801624097 - 2³⁰ = 15727882273 is a prime.

It is not a weakly prime, because it can be changed into another prime (16801624597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8400812048 + 8400812049.

It is an arithmetic number, because the mean of its divisors is an integer number (8400812049).

Almost surely, 2^16801624097 is an apocalyptic number.

It is an amenable number.

16801624097 is a deficient number, since it is larger than the sum of its proper divisors (1).

16801624097 is an equidigital number, since it uses as much as digits as its factorization.

16801624097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 16801624097 in words is "sixteen billion, eight hundred one million, six hundred twenty-four thousand, ninety-seven".