668010701 has 2 divisors, whose sum is σ = 668010702. Its totient is φ = 668010700.

The previous prime is 668010697. The next prime is 668010713. The reversal of 668010701 is 107010866.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 665124100 + 2886601 = 25790^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 668010701 - 2² = 668010697 is a prime.

It is a super-2 number, since 2×668010701² = 892476593301022802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668010401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334005350 + 334005351.

It is an arithmetic number, because the mean of its divisors is an integer number (334005351).

Almost surely, 2^668010701 is an apocalyptic number.

It is an amenable number.

668010701 is a deficient number, since it is larger than the sum of its proper divisors (1).

668010701 is an equidigital number, since it uses as much as digits as its factorization.

668010701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 668010701 is about 25845.9029828714. The cubic root of 668010701 is about 874.1671317312.

The spelling of 668010701 in words is "six hundred sixty-eight million, ten thousand, seven hundred one".