161293512395 has 16 divisors (see below), whose sum is σ = 200238838560. Its totient is φ = 124577612544.

The previous prime is 161293512383. The next prime is 161293512397. The reversal of 161293512395 is 593215392161.

It is a cyclic number.

It is not a de Polignac number, because 161293512395 - 2¹⁰ = 161293511371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161293512397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3714047 + ... + 3757223.

It is an arithmetic number, because the mean of its divisors is an integer number (12514927410).

Almost surely, 2^161293512395 is an apocalyptic number.

161293512395 is a deficient number, since it is larger than the sum of its proper divisors (38945326165).

161293512395 is a wasteful number, since it uses less digits than its factorization.

161293512395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68974.

The product of its digits is 437400, while the sum is 47.

The spelling of 161293512395 in words is "one hundred sixty-one billion, two hundred ninety-three million, five hundred twelve thousand, three hundred ninety-five".