20174834342820 has 24 divisors (see below), whose sum is σ = 56489536160064. Its totient is φ = 5379955824736.

The previous prime is 20174834342807. The next prime is 20174834342837. The reversal of 20174834342820 is 2824343847102.

It is a self number, because there is not a number n which added to its sum of digits gives 20174834342820.

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, 168123619464 + ... + 168123619583.

It is an arithmetic number, because the mean of its divisors is an integer number (2353730673336).

Almost surely, 2^{20174834342820} is an apocalyptic number.

20174834342820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20174834342820 is an abundant number, since it is smaller than the sum of its proper divisors (36314701817244).

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

20174834342820 is a wasteful number, since it uses less digits than its factorization.

20174834342820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336247239059 (or 336247239057 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 20174834342820 in words is "twenty trillion, one hundred seventy-four billion, eight hundred thirty-four million, three hundred forty-two thousand, eight hundred twenty".