161448306499 has 2 divisors, whose sum is σ = 161448306500. Its totient is φ = 161448306498.

The previous prime is 161448306479. The next prime is 161448306511. The reversal of 161448306499 is 994603844161.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 161448306499 - 2³³ = 152858371907 is a prime.

It is not a weakly prime, because it can be changed into another prime (161448306419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80724153249 + 80724153250.

It is an arithmetic number, because the mean of its divisors is an integer number (80724153250).

Almost surely, 2^161448306499 is an apocalyptic number.

161448306499 is a deficient number, since it is larger than the sum of its proper divisors (1).

161448306499 is an equidigital number, since it uses as much as digits as its factorization.

161448306499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 161448306499 in words is "one hundred sixty-one billion, four hundred forty-eight million, three hundred six thousand, four hundred ninety-nine".