106664540387 has 2 divisors, whose sum is σ = 106664540388. Its totient is φ = 106664540386.

The previous prime is 106664540377. The next prime is 106664540407. The reversal of 106664540387 is 783045466601.

It is a weak prime.

It is an emirp because it is prime and its reverse (783045466601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106664540387 - 2¹² = 106664536291 is a prime.

It is a super-2 number, since 2×106664540387² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106664540317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53332270193 + 53332270194.

It is an arithmetic number, because the mean of its divisors is an integer number (53332270194).

Almost surely, 2^106664540387 is an apocalyptic number.

106664540387 is a deficient number, since it is larger than the sum of its proper divisors (1).

106664540387 is an equidigital number, since it uses as much as digits as its factorization.

106664540387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 106664540387 in words is "one hundred six billion, six hundred sixty-four million, five hundred forty thousand, three hundred eighty-seven".