161022506908 has 24 divisors (see below), whose sum is σ = 287659678880. Its totient is φ = 78845555520.

The previous prime is 161022506863. The next prime is 161022506963. The reversal of 161022506908 is 809605220161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1385016 + ... + 1496767.

Almost surely, 2^161022506908 is an apocalyptic number.

It is an amenable number.

161022506908 is a deficient number, since it is larger than the sum of its proper divisors (126637171972).

161022506908 is a wasteful number, since it uses less digits than its factorization.

161022506908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882077 (or 2882075 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 161022506908 in words is "one hundred sixty-one billion, twenty-two million, five hundred six thousand, nine hundred eight".