20004166242 has 16 divisors (see below), whose sum is σ = 44453702880. Its totient is φ = 6668055396.

The previous prime is 20004166241. The next prime is 20004166253. The reversal of 20004166242 is 24266140002.

20004166242 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 416 + 6 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20004166241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185223708 + ... + 185223815.

It is an arithmetic number, because the mean of its divisors is an integer number (2778356430).

Almost surely, 2^20004166242 is an apocalyptic number.

20004166242 is an abundant number, since it is smaller than the sum of its proper divisors (24449536638).

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

20004166242 is a wasteful number, since it uses less digits than its factorization.

20004166242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370447534 (or 370447528 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The spelling of 20004166242 in words is "twenty billion, four million, one hundred sixty-six thousand, two hundred forty-two".