20492201918498 has 32 divisors (see below), whose sum is σ = 31848485765760. Its totient is φ = 9877159272960.

The previous prime is 20492201918491. The next prime is 20492201918557. The reversal of 20492201918498 is 89481910229402.

It is a super-2 number, since 2×20492201918498² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20492201918491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 606064013 + ... + 606097823.

It is an arithmetic number, because the mean of its divisors is an integer number (995265180180).

Almost surely, 2^{20492201918498} is an apocalyptic number.

20492201918498 is a deficient number, since it is larger than the sum of its proper divisors (11356283847262).

20492201918498 is a wasteful number, since it uses less digits than its factorization.

20492201918498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50042.

The product of its (nonzero) digits is 5971968, while the sum is 59.

The spelling of 20492201918498 in words is "twenty trillion, four hundred ninety-two billion, two hundred one million, nine hundred eighteen thousand, four hundred ninety-eight".