161964300 has 36 divisors (see below), whose sum is σ = 468617576. Its totient is φ = 43190400.

The previous prime is 161964251. The next prime is 161964317. The reversal of 161964300 is 3469161.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269641 + ... + 270240.

Almost surely, 2^161964300 is an apocalyptic number.

161964300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161964300 is an abundant number, since it is smaller than the sum of its proper divisors (306653276).

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

161964300 is a wasteful number, since it uses less digits than its factorization.

161964300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539898 (or 539891 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 161964300 is about 12726.5195556366. The cubic root of 161964300 is about 545.0961309540.

The spelling of 161964300 in words is "one hundred sixty-one million, nine hundred sixty-four thousand, three hundred".