101660009587 has 2 divisors, whose sum is σ = 101660009588. Its totient is φ = 101660009586.

The previous prime is 101660009579. The next prime is 101660009597. The reversal of 101660009587 is 785900066101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101660009587 - 2³ = 101660009579 is a prime.

It is not a weakly prime, because it can be changed into another prime (101660009527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50830004793 + 50830004794.

It is an arithmetic number, because the mean of its divisors is an integer number (50830004794).

Almost surely, 2^101660009587 is an apocalyptic number.

101660009587 is a deficient number, since it is larger than the sum of its proper divisors (1).

101660009587 is an equidigital number, since it uses as much as digits as its factorization.

101660009587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 101660009587 in words is "one hundred one billion, six hundred sixty million, nine thousand, five hundred eighty-seven".