20199840182 has 4 divisors (see below), whose sum is σ = 30299760276. Its totient is φ = 10099920090.

The previous prime is 20199840179. The next prime is 20199840197. The reversal of 20199840182 is 28104899102.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5049960044 + ... + 5049960047.

It is an arithmetic number, because the mean of its divisors is an integer number (7574940069).

Almost surely, 2^20199840182 is an apocalyptic number.

20199840182 is a deficient number, since it is larger than the sum of its proper divisors (10099920094).

20199840182 is a wasteful number, since it uses less digits than its factorization.

20199840182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10099920093.

The product of its (nonzero) digits is 82944, while the sum is 44.

The spelling of 20199840182 in words is "twenty billion, one hundred ninety-nine million, eight hundred forty thousand, one hundred eighty-two".