106663146885 has 24 divisors (see below), whose sum is σ = 185343873624. Its totient is φ = 56745139200.

The previous prime is 106663146883. The next prime is 106663146901. The reversal of 106663146885 is 588641366601.

It can be written as a sum of positive squares in 4 ways, for example, as 56986760961 + 49676385924 = 238719^2 + 222882^2 .

It is not a de Polignac number, because 106663146885 - 2¹ = 106663146883 is a prime.

It is a super-2 number, since 2×106663146885² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106663146881) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2937432 + ... + 2973521.

It is an arithmetic number, because the mean of its divisors is an integer number (7722661401).

Almost surely, 2^106663146885 is an apocalyptic number.

106663146885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106663146885 is a deficient number, since it is larger than the sum of its proper divisors (78680726739).

106663146885 is a wasteful number, since it uses less digits than its factorization.

106663146885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5911365 (or 5911362 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 106663146885 in words is "one hundred six billion, six hundred sixty-three million, one hundred forty-six thousand, eight hundred eighty-five".