66092081 has 16 divisors (see below), whose sum is σ = 73389888. Its totient is φ = 59020800.

The previous prime is 66092063. The next prime is 66092119. The reversal of 66092081 is 18029066.

It is a cyclic number.

It is not a de Polignac number, because 66092081 - 2²² = 61897777 is a prime.

It is a super-2 number, since 2×66092081² = 8736326341821122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66092381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274121 + ... + 274361.

It is an arithmetic number, because the mean of its divisors is an integer number (4586868).

Almost surely, 2^66092081 is an apocalyptic number.

It is an amenable number.

66092081 is a deficient number, since it is larger than the sum of its proper divisors (7297807).

66092081 is a wasteful number, since it uses less digits than its factorization.

66092081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 66092081 is about 8129.7036231341. The cubic root of 66092081 is about 404.3118548396.

The spelling of 66092081 in words is "sixty-six million, ninety-two thousand, eighty-one".