16181163452 has 6 divisors (see below), whose sum is σ = 28317036048. Its totient is φ = 8090581724.

The previous prime is 16181163451. The next prime is 16181163497. The reversal of 16181163452 is 25436118161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16181163451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022645428 + ... + 2022645435.

It is an arithmetic number, because the mean of its divisors is an integer number (4719506008).

Almost surely, 2^16181163452 is an apocalyptic number.

It is an amenable number.

16181163452 is a deficient number, since it is larger than the sum of its proper divisors (12135872596).

16181163452 is a wasteful number, since it uses less digits than its factorization.

16181163452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045290867 (or 4045290865 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The spelling of 16181163452 in words is "sixteen billion, one hundred eighty-one million, one hundred sixty-three thousand, four hundred fifty-two".