16146954997 has 2 divisors, whose sum is σ = 16146954998. Its totient is φ = 16146954996.

The previous prime is 16146954973. The next prime is 16146955009. The reversal of 16146954997 is 79945964161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8368773361 + 7778181636 = 91481^2 + 88194^2 .

It is a cyclic number.

It is not a de Polignac number, because 16146954997 - 2⁷ = 16146954869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16146954907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8073477498 + 8073477499.

It is an arithmetic number, because the mean of its divisors is an integer number (8073477499).

Almost surely, 2^16146954997 is an apocalyptic number.

It is an amenable number.

16146954997 is a deficient number, since it is larger than the sum of its proper divisors (1).

16146954997 is an equidigital number, since it uses as much as digits as its factorization.

16146954997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14696640, while the sum is 61.

The spelling of 16146954997 in words is "sixteen billion, one hundred forty-six million, nine hundred fifty-four thousand, nine hundred ninety-seven".