161073964 has 6 divisors (see below), whose sum is σ = 281879444. Its totient is φ = 80536980.

The previous prime is 161073959. The next prime is 161073967. The reversal of 161073964 is 469370161.

161073964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161073967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20134242 + ... + 20134249.

Almost surely, 2^161073964 is an apocalyptic number.

It is an amenable number.

161073964 is a deficient number, since it is larger than the sum of its proper divisors (120805480).

161073964 is a wasteful number, since it uses less digits than its factorization.

161073964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40268495 (or 40268493 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 161073964 is about 12691.4917956874. The cubic root of 161073964 is about 544.0954768622.

The spelling of 161073964 in words is "one hundred sixty-one million, seventy-three thousand, nine hundred sixty-four".