161500342154 has 16 divisors (see below), whose sum is σ = 245026960200. Its totient is φ = 79825092864.

The previous prime is 161500342103. The next prime is 161500342169. The reversal of 161500342154 is 451243005161.

161500342154 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 109458414025 + 52041928129 = 330845^2 + 228127^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 161500342154.

It is an unprimeable number.

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, 719582 + ... + 916950.

Almost surely, 2^161500342154 is an apocalyptic number.

161500342154 is a deficient number, since it is larger than the sum of its proper divisors (83526618046).

161500342154 is a wasteful number, since it uses less digits than its factorization.

161500342154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202057.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 161500342154 in words is "one hundred sixty-one billion, five hundred million, three hundred forty-two thousand, one hundred fifty-four".