46666681 has 2 divisors, whose sum is σ = 46666682. Its totient is φ = 46666680.

The previous prime is 46666663. The next prime is 46666691. The reversal of 46666681 is 18666664.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27657081 + 19009600 = 5259^2 + 4360^2 .

It is a cyclic number.

It is not a de Polignac number, because 46666681 - 2¹⁷ = 46535609 is a prime.

It is a super-2 number, since 2×46666681² = 4355558231111522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (46666601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23333340 + 23333341.

It is an arithmetic number, because the mean of its divisors is an integer number (23333341).

Almost surely, 2^46666681 is an apocalyptic number.

It is an amenable number.

46666681 is a deficient number, since it is larger than the sum of its proper divisors (1).

46666681 is an equidigital number, since it uses as much as digits as its factorization.

46666681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 46666681 is about 6831.3015597322. The cubic root of 46666681 is about 360.0274696117.

The spelling of 46666681 in words is "forty-six million, six hundred sixty-six thousand, six hundred eighty-one".