161723468 has 12 divisors (see below), whose sum is σ = 284711952. Its totient is φ = 80377200.

The previous prime is 161723437. The next prime is 161723477. The reversal of 161723468 is 864327161.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120383 + ... + 121718.

It is an arithmetic number, because the mean of its divisors is an integer number (23725996).

Almost surely, 2^161723468 is an apocalyptic number.

It is an amenable number.

161723468 is a deficient number, since it is larger than the sum of its proper divisors (122988484).

161723468 is a wasteful number, since it uses less digits than its factorization.

161723468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242272 (or 242270 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 161723468 is about 12717.0542186467. The cubic root of 161723468 is about 544.8258209490.

The spelling of 161723468 in words is "one hundred sixty-one million, seven hundred twenty-three thousand, four hundred sixty-eight".