20182504690 has 16 divisors (see below), whose sum is σ = 36383480280. Its totient is φ = 8060785920.

The previous prime is 20182504687. The next prime is 20182504739. The reversal of 20182504690 is 9640528102.

It can be written as a sum of positive squares in 4 ways, for example, as 15849047449 + 4333457241 = 125893^2 + 65829^2 .

It is a super-2 number, since 2×20182504690² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520055 + ... + 1533274.

Almost surely, 2^20182504690 is an apocalyptic number.

20182504690 is a deficient number, since it is larger than the sum of its proper divisors (16200975590).

20182504690 is a wasteful number, since it uses less digits than its factorization.

20182504690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3053997.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 20182504690 in words is "twenty billion, one hundred eighty-two million, five hundred four thousand, six hundred ninety".