209153096900 has 36 divisors (see below), whose sum is σ = 495122424720. Its totient is φ = 76055671200.

The previous prime is 209153096881. The next prime is 209153096983. The reversal of 209153096900 is 9690351902.

It is a super-2 number, since 2×209153096900² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 95068490 + ... + 95070689.

Almost surely, 2^209153096900 is an apocalyptic number.

209153096900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

209153096900 is an abundant number, since it is smaller than the sum of its proper divisors (285969327820).

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

209153096900 is a wasteful number, since it uses less digits than its factorization.

209153096900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190139204 (or 190139197 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 44.

The spelling of 209153096900 in words is "two hundred nine billion, one hundred fifty-three million, ninety-six thousand, nine hundred".