667225165 has 8 divisors (see below), whose sum is σ = 801504000. Its totient is φ = 533224272.

The previous prime is 667225151. The next prime is 667225171. The reversal of 667225165 is 561522766.

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

It is a cyclic number.

It is not a de Polignac number, because 667225165 - 2¹³ = 667216973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64165 + ... + 73834.

It is an arithmetic number, because the mean of its divisors is an integer number (100188000).

Almost surely, 2^667225165 is an apocalyptic number.

It is an amenable number.

667225165 is a deficient number, since it is larger than the sum of its proper divisors (134278835).

667225165 is a wasteful number, since it uses less digits than its factorization.

667225165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138971.

The product of its digits is 151200, while the sum is 40.

The square root of 667225165 is about 25830.7019842667. The cubic root of 667225165 is about 873.8243432629.

The spelling of 667225165 in words is "six hundred sixty-seven million, two hundred twenty-five thousand, one hundred sixty-five".