60666631 has 2 divisors, whose sum is σ = 60666632. Its totient is φ = 60666630.

The previous prime is 60666623. The next prime is 60666653. The reversal of 60666631 is 13666606.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 60666631 - 2³ = 60666623 is a prime.

It is a super-2 number, since 2×60666631² = 7360880233780322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60666611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30333315 + 30333316.

It is an arithmetic number, because the mean of its divisors is an integer number (30333316).

Almost surely, 2^60666631 is an apocalyptic number.

60666631 is a deficient number, since it is larger than the sum of its proper divisors (1).

60666631 is an equidigital number, since it uses as much as digits as its factorization.

60666631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 60666631 is about 7788.8786741096. The cubic root of 60666631 is about 392.9313008090.

The spelling of 60666631 in words is "sixty million, six hundred sixty-six thousand, six hundred thirty-one".