2665149603 has 8 divisors (see below), whose sum is σ = 3562910400. Its totient is φ = 1772077608.

The previous prime is 2665149581. The next prime is 2665149623. The reversal of 2665149603 is 3069415662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2665149603 - 2¹² = 2665145507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2665149623) 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 7 ways as a sum of consecutive naturals, for example, 1170873 + ... + 1173146.

It is an arithmetic number, because the mean of its divisors is an integer number (445363800).

Almost surely, 2^2665149603 is an apocalyptic number.

2665149603 is a deficient number, since it is larger than the sum of its proper divisors (897760797).

2665149603 is a wasteful number, since it uses less digits than its factorization.

2665149603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344401.

The product of its (nonzero) digits is 233280, while the sum is 42.

The square root of 2665149603 is about 51625.0869539219. The cubic root of 2665149603 is about 1386.4595305187.

The spelling of 2665149603 in words is "two billion, six hundred sixty-five million, one hundred forty-nine thousand, six hundred three".