20165040192 has 56 divisors (see below), whose sum is σ = 58203644832. Its totient is φ = 6110617600.

The previous prime is 20165040187. The next prime is 20165040199. The reversal of 20165040192 is 29104056102.

It is not an unprimeable number, because it can be changed into a prime (20165040199) 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, 4771809 + ... + 4776032.

Almost surely, 2^20165040192 is an apocalyptic number.

20165040192 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20165040192 is an abundant number, since it is smaller than the sum of its proper divisors (38038604640).

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

20165040192 is a wasteful number, since it uses less digits than its factorization.

20165040192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9547867 (or 9547857 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 20165040192 its reverse (29104056102), we get a palindrome (49269096294).

The spelling of 20165040192 in words is "twenty billion, one hundred sixty-five million, forty thousand, one hundred ninety-two".