161500427422 has 32 divisors (see below), whose sum is σ = 253438875648. Its totient is φ = 77039298336.

The previous prime is 161500427411. The next prime is 161500427449. The reversal of 161500427422 is 224724005161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34337523 + ... + 34342225.

It is an arithmetic number, because the mean of its divisors is an integer number (7919964864).

Almost surely, 2^161500427422 is an apocalyptic number.

161500427422 is a deficient number, since it is larger than the sum of its proper divisors (91938448226).

161500427422 is a wasteful number, since it uses less digits than its factorization.

161500427422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6504.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 161500427422 in words is "one hundred sixty-one billion, five hundred million, four hundred twenty-seven thousand, four hundred twenty-two".