161010004 has 24 divisors (see below), whose sum is σ = 286624800. Its totient is φ = 79129440.

The previous prime is 161009983. The next prime is 161010013. The reversal of 161010004 is 400010161.

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, 55707 + ... + 58525.

It is an arithmetic number, because the mean of its divisors is an integer number (11942700).

Almost surely, 2^161010004 is an apocalyptic number.

It is an amenable number.

161010004 is a deficient number, since it is larger than the sum of its proper divisors (125614796).

161010004 is a wasteful number, since it uses less digits than its factorization.

161010004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063 (or 3061 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 161010004 is about 12688.9717471511. The cubic root of 161010004 is about 544.0234500056.

Adding to 161010004 its reverse (400010161), we get a palindrome (561020165).

The spelling of 161010004 in words is "one hundred sixty-one million, ten thousand, four".