161192464 has 40 divisors (see below), whose sum is σ = 328550400. Its totient is φ = 76462848.

The previous prime is 161192431. The next prime is 161192483. The reversal of 161192464 is 464291161.

161192464 = 1248² + 1249² + ... + 1343².

It is a happy number.

161192464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 45012 + ... + 48460.

It is an arithmetic number, because the mean of its divisors is an integer number (8213760).

Almost surely, 2^161192464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161192464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164275200).

161192464 is an abundant number, since it is smaller than the sum of its proper divisors (167357936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161192464 is a wasteful number, since it uses less digits than its factorization.

161192464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607 (or 3601 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 161192464 is about 12696.1594192890. The cubic root of 161192464 is about 544.2288721208.

It can be divided in two parts, 16 and 1192464, that multiplied together give a square (19079424 = 4368²).

The spelling of 161192464 in words is "one hundred sixty-one million, one hundred ninety-two thousand, four hundred sixty-four".