2091366900 has 216 divisors, whose sum is σ = 7750753920. Its totient is φ = 461502720.

The previous prime is 2091366859. The next prime is 2091366941. The reversal of 2091366900 is 96631902.

2091366900 is a `hidden beast` number, since 209 + 1 + 366 + 90 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (2091366859) and next prime (2091366941).

It is a super-2 number, since 2×2091366900² = 8747631020831220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 176977 + ... + 188423.

It is an arithmetic number, because the mean of its divisors is an integer number (35883120).

Almost surely, 2^2091366900 is an apocalyptic number.

2091366900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2091366900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3875376960).

2091366900 is an abundant number, since it is smaller than the sum of its proper divisors (5659387020).

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

2091366900 is a wasteful number, since it uses less digits than its factorization.

2091366900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11503 (or 11493 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 2091366900 is about 45731.4650978951. The cubic root of 2091366900 is about 1278.8219344758.

The spelling of 2091366900 in words is "two billion, ninety-one million, three hundred sixty-six thousand, nine hundred".