2660001533 has 4 divisors (see below), whose sum is σ = 3040001760. Its totient is φ = 2280001308.

The previous prime is 2660001527. The next prime is 2660001557. The reversal of 2660001533 is 3351000662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2660001533 - 2⁴ = 2660001517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660001503) 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 3 ways as a sum of consecutive naturals, for example, 190000103 + ... + 190000116.

It is an arithmetic number, because the mean of its divisors is an integer number (760000440).

Almost surely, 2^2660001533 is an apocalyptic number.

It is an amenable number.

2660001533 is a deficient number, since it is larger than the sum of its proper divisors (380000227).

2660001533 is an equidigital number, since it uses as much as digits as its factorization.

2660001533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380000226.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2660001533 is about 51575.2026947059. The cubic root of 2660001533 is about 1385.5662484103.

The spelling of 2660001533 in words is "two billion, six hundred sixty million, one thousand, five hundred thirty-three".