105666064546 has 16 divisors (see below), whose sum is σ = 181157258880. Its totient is φ = 45281597760.

The previous prime is 105666064541. The next prime is 105666064607. The reversal of 105666064546 is 645460666501.

It is a happy number.

It is a super-2 number, since 2×105666064546² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105666064546.

It is not an unprimeable number, because it can be changed into a prime (105666064541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148135 + ... + 482986.

It is an arithmetic number, because the mean of its divisors is an integer number (11322328680).

Almost surely, 2^105666064546 is an apocalyptic number.

105666064546 is a deficient number, since it is larger than the sum of its proper divisors (75491194334).

105666064546 is a wasteful number, since it uses less digits than its factorization.

105666064546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643089.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 105666064546 in words is "one hundred five billion, six hundred sixty-six million, sixty-four thousand, five hundred forty-six".