2661133597 has 8 divisors (see below), whose sum is σ = 2802029760. Its totient is φ = 2520321120.

The previous prime is 2661133571. The next prime is 2661133619. The reversal of 2661133597 is 7953311662.

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

It is not a de Polignac number, because 2661133597 - 2¹⁹ = 2660609309 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 (2661133507) 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, 50673 + ... + 88825.

It is an arithmetic number, because the mean of its divisors is an integer number (350253720).

Almost surely, 2^2661133597 is an apocalyptic number.

It is an amenable number.

2661133597 is a deficient number, since it is larger than the sum of its proper divisors (140896163).

2661133597 is a wasteful number, since it uses less digits than its factorization.

2661133597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41843.

The product of its digits is 204120, while the sum is 43.

The square root of 2661133597 is about 51586.1764138417. The cubic root of 2661133597 is about 1385.7627805281.

The spelling of 2661133597 in words is "two billion, six hundred sixty-one million, one hundred thirty-three thousand, five hundred ninety-seven".