161402399867 has 8 divisors (see below), whose sum is σ = 164711479200. Its totient is φ = 158122998720.

The previous prime is 161402399857. The next prime is 161402399929. The reversal of 161402399867 is 768993204161.

161402399867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161402399867 - 2²⁶ = 161335291003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161402399857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7408559 + ... + 7430312.

It is an arithmetic number, because the mean of its divisors is an integer number (20588934900).

Almost surely, 2^161402399867 is an apocalyptic number.

161402399867 is a deficient number, since it is larger than the sum of its proper divisors (3309079333).

161402399867 is a wasteful number, since it uses less digits than its factorization.

161402399867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14839093.

The product of its (nonzero) digits is 3919104, while the sum is 56.

The spelling of 161402399867 in words is "one hundred sixty-one billion, four hundred two million, three hundred ninety-nine thousand, eight hundred sixty-seven".