667100361 has 4 divisors (see below), whose sum is σ = 889467152. Its totient is φ = 444733572.

The previous prime is 667100351. The next prime is 667100387. The reversal of 667100361 is 163001766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 667100361 - 2⁷ = 667100233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667100351) 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, 111183391 + ... + 111183396.

It is an arithmetic number, because the mean of its divisors is an integer number (222366788).

Almost surely, 2^667100361 is an apocalyptic number.

It is an amenable number.

667100361 is a deficient number, since it is larger than the sum of its proper divisors (222366791).

667100361 is a wasteful number, since it uses less digits than its factorization.

667100361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222366790.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 667100361 is about 25828.2860639261. The cubic root of 667100361 is about 873.7698571217.

The spelling of 667100361 in words is "six hundred sixty-seven million, one hundred thousand, three hundred sixty-one".