2666145375 has 40 divisors (see below), whose sum is σ = 4970503824. Its totient is φ = 1421938800.

The previous prime is 2666145373. The next prime is 2666145389. The reversal of 2666145375 is 5735416662.

It is not a de Polignac number, because 2666145375 - 2¹ = 2666145373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2666145375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666145373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 121537 + ... + 141786.

Almost surely, 2^2666145375 is an apocalyptic number.

2666145375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2666145375 is a deficient number, since it is larger than the sum of its proper divisors (2304358449).

2666145375 is an equidigital number, since it uses as much as digits as its factorization.

2666145375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263350 (or 263331 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 2666145375 is about 51634.7303178781. The cubic root of 2666145375 is about 1386.6321819490.

The spelling of 2666145375 in words is "two billion, six hundred sixty-six million, one hundred forty-five thousand, three hundred seventy-five".