66160398 has 8 divisors (see below), whose sum is σ = 132320808. Its totient is φ = 22053464.

The previous prime is 66160363. The next prime is 66160399. The reversal of 66160398 is 89306166.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

66160398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66160399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5513361 + ... + 5513372.

It is an arithmetic number, because the mean of its divisors is an integer number (16540101).

Almost surely, 2^66160398 is an apocalyptic number.

66160398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66160398 is a wasteful number, since it uses less digits than its factorization.

66160398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026738.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 66160398 is about 8133.9042285977. The cubic root of 66160398 is about 404.4511143946.

The spelling of 66160398 in words is "sixty-six million, one hundred sixty thousand, three hundred ninety-eight".