20680801774 has 8 divisors (see below), whose sum is σ = 31341009168. Its totient is φ = 10233798720.

The previous prime is 20680801753. The next prime is 20680801777. The reversal of 20680801774 is 47710808602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 20680801774.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20680801777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53300842 + ... + 53301229.

It is an arithmetic number, because the mean of its divisors is an integer number (3917626146).

Almost surely, 2^20680801774 is an apocalyptic number.

20680801774 is a deficient number, since it is larger than the sum of its proper divisors (10660207394).

20680801774 is a wasteful number, since it uses less digits than its factorization.

20680801774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106602170.

The product of its (nonzero) digits is 150528, while the sum is 43.

The spelling of 20680801774 in words is "twenty billion, six hundred eighty million, eight hundred one thousand, seven hundred seventy-four".