20030137665250 has 32 divisors (see below), whose sum is σ = 38789397644400. Its totient is φ = 7735777302400.

The previous prime is 20030137665229. The next prime is 20030137665259. The reversal of 20030137665250 is 5256673103002.

It can be written as a sum of positive squares in 8 ways, for example, as 25065539041 + 20005072126209 = 158321^2 + 4472703^2 .

It is not an unprimeable number, because it can be changed into a prime (20030137665259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1381381555 + ... + 1381396054.

Almost surely, 2^{20030137665250} is an apocalyptic number.

20030137665250 is a deficient number, since it is larger than the sum of its proper divisors (18759259979150).

20030137665250 is a wasteful number, since it uses less digits than its factorization.

20030137665250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2762777655 (or 2762777645 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 20030137665250 in words is "twenty trillion, thirty billion, one hundred thirty-seven million, six hundred sixty-five thousand, two hundred fifty".