667060105 has 8 divisors (see below), whose sum is σ = 801106632. Its totient is φ = 533225088.

The previous prime is 667060091. The next prime is 667060109. The reversal of 667060105 is 501060766.

It can be written as a sum of positive squares in 4 ways, for example, as 314672121 + 352387984 = 17739^2 + 18772^2 .

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 667060105 - 2⁷ = 667059977 is a prime.

It is a super-2 number, since 2×667060105² = 889938367365222050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667060109) 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, 45852 + ... + 58621.

It is an arithmetic number, because the mean of its divisors is an integer number (100138329).

Almost surely, 2^667060105 is an apocalyptic number.

It is an amenable number.

667060105 is a deficient number, since it is larger than the sum of its proper divisors (134046527).

667060105 is a wasteful number, since it uses less digits than its factorization.

667060105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105755.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 667060105 is about 25827.5067515237. The cubic root of 667060105 is about 873.7522809622.

The spelling of 667060105 in words is "six hundred sixty-seven million, sixty thousand, one hundred five".