66111162 has 32 divisors (see below), whose sum is σ = 142829568. Its totient is φ = 20279616.

The previous prime is 66111109. The next prime is 66111163. The reversal of 66111162 is 26111166.

It is a super-3 number, since 3×66111162³ (a number of 24 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (66111163) 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, 28768 + ... + 30980.

It is an arithmetic number, because the mean of its divisors is an integer number (4463424).

Almost surely, 2^66111162 is an apocalyptic number.

66111162 is the 6639-th pentagonal number.

66111162 is an abundant number, since it is smaller than the sum of its proper divisors (76718406).

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

66111162 is a wasteful number, since it uses less digits than its factorization.

66111162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2614.

The product of its digits is 432, while the sum is 24.

The square root of 66111162 is about 8130.8770744613. The cubic root of 66111162 is about 404.3507598142.

The spelling of 66111162 in words is "sixty-six million, one hundred eleven thousand, one hundred sixty-two".