36803806020 has 72 divisors (see below), whose sum is σ = 114655481304. Its totient is φ = 9549093888.

The previous prime is 36803806009. The next prime is 36803806021. The reversal of 36803806020 is 2060830863.

It can be written as a sum of positive squares in 4 ways, for example, as 11492268804 + 25311537216 = 107202^2 + 159096^2 .

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

It is not an unprimeable number, because it can be changed into a prime (36803806021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2756389 + ... + 2769708.

Almost surely, 2^36803806020 is an apocalyptic number.

36803806020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

36803806020 is an abundant number, since it is smaller than the sum of its proper divisors (77851675284).

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

36803806020 is a wasteful number, since it uses less digits than its factorization.

36803806020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526149 (or 5526144 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

It can be divided in two parts, 3680380 and 6020, that added together give a square (3686400 = 1920²).

The spelling of 36803806020 in words is "thirty-six billion, eight hundred three million, eight hundred six thousand, twenty".