667111101 has 8 divisors (see below), whose sum is σ = 902009664. Its totient is φ = 438476640.

The previous prime is 667111097. The next prime is 667111111. The reversal of 667111101 is 101111766.

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

It is not a de Polignac number, because 667111101 - 2² = 667111097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667111111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1565776 + ... + 1566201.

It is an arithmetic number, because the mean of its divisors is an integer number (112751208).

Almost surely, 2^667111101 is an apocalyptic number.

It is an amenable number.

667111101 is a deficient number, since it is larger than the sum of its proper divisors (234898563).

667111101 is a wasteful number, since it uses less digits than its factorization.

667111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3132051.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 667111101 is about 25828.4939746784. The cubic root of 667111101 is about 873.7745461902.

Adding to 667111101 its reverse (101111766), we get a palindrome (768222867).

The spelling of 667111101 in words is "six hundred sixty-seven million, one hundred eleven thousand, one hundred one".