161065300 has 36 divisors (see below), whose sum is σ = 381288096. Its totient is φ = 58568800.

The previous prime is 161065213. The next prime is 161065313. The reversal of 161065300 is 3560161.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 72112 + ... + 74311.

It is an arithmetic number, because the mean of its divisors is an integer number (10591336).

Almost surely, 2^161065300 is an apocalyptic number.

161065300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161065300 is an abundant number, since it is smaller than the sum of its proper divisors (220222796).

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

161065300 is a wasteful number, since it uses less digits than its factorization.

161065300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146448 (or 146441 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 161065300 is about 12691.1504600647. The cubic root of 161065300 is about 544.0857212452.

The spelling of 161065300 in words is "one hundred sixty-one million, sixty-five thousand, three hundred".