185420201922 has 16 divisors (see below), whose sum is σ = 412044893280. Its totient is φ = 61806733956.

The previous prime is 185420201921. The next prime is 185420201957. The reversal of 185420201922 is 229102024581.

185420201922 is a `hidden beast` number, since 1 + 8 + 5 + 420 + 201 + 9 + 22 = 666.

It is not an unprimeable number, because it can be changed into a prime (185420201921) 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, 1716853668 + ... + 1716853775.

It is an arithmetic number, because the mean of its divisors is an integer number (25752805830).

Almost surely, 2^185420201922 is an apocalyptic number.

185420201922 is an abundant number, since it is smaller than the sum of its proper divisors (226624691358).

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

185420201922 is a wasteful number, since it uses less digits than its factorization.

185420201922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3433707454 (or 3433707448 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The spelling of 185420201922 in words is "one hundred eighty-five billion, four hundred twenty million, two hundred one thousand, nine hundred twenty-two".