66167011 has 4 divisors (see below), whose sum is σ = 66213112. Its totient is φ = 66120912.

The previous prime is 66166993. The next prime is 66167029. The reversal of 66167011 is 11076166.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11076166 = 2 ⋅5538083.

It is an interprime number because it is at equal distance from previous prime (66166993) and next prime (66167029).

It is a cyclic number.

It is not a de Polignac number, because 66167011 - 2⁵ = 66166979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66167041) 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, 20826 + ... + 23791.

It is an arithmetic number, because the mean of its divisors is an integer number (16553278).

Almost surely, 2^66167011 is an apocalyptic number.

66167011 is a deficient number, since it is larger than the sum of its proper divisors (46101).

66167011 is a wasteful number, since it uses less digits than its factorization.

66167011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46100.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 66167011 is about 8134.3107267918. The cubic root of 66167011 is about 404.4645894552.

The spelling of 66167011 in words is "sixty-six million, one hundred sixty-seven thousand, eleven".