667770101 has 8 divisors (see below), whose sum is σ = 690187008. Its totient is φ = 645408000.

The previous prime is 667770071. The next prime is 667770113. The reversal of 667770101 is 101077766.

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 667770101 - 2¹⁸ = 667507957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667770151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11861 + ... + 38421.

It is an arithmetic number, because the mean of its divisors is an integer number (86273376).

Almost surely, 2^667770101 is an apocalyptic number.

It is an amenable number.

667770101 is a deficient number, since it is larger than the sum of its proper divisors (22416907).

667770101 is a wasteful number, since it uses less digits than its factorization.

667770101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27403.

The product of its (nonzero) digits is 12348, while the sum is 35.

The square root of 667770101 is about 25841.2480542252. The cubic root of 667770101 is about 874.0621684086.

The spelling of 667770101 in words is "six hundred sixty-seven million, seven hundred seventy thousand, one hundred one".