1165448900 has 72 divisors (see below), whose sum is σ = 3153089856. Its totient is φ = 363254400.

The previous prime is 1165448863. The next prime is 1165448929. The reversal of 1165448900 is 98445611.

It is a super-2 number, since 2×1165448900² = 2716542277022420000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67979 + ... + 83378.

Almost surely, 2^1165448900 is an apocalyptic number.

1165448900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1165448900 is an abundant number, since it is smaller than the sum of its proper divisors (1987640956).

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

1165448900 is a wasteful number, since it uses less digits than its factorization.

1165448900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151389 (or 151382 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 1165448900 is about 34138.6716203194. The cubic root of 1165448900 is about 1052.3601934200.

The spelling of 1165448900 in words is "one billion, one hundred sixty-five million, four hundred forty-eight thousand, nine hundred".