2661403053 has 8 divisors (see below), whose sum is σ = 3549016768. Its totient is φ = 1774029024.

The previous prime is 2661403037. The next prime is 2661403067. The reversal of 2661403053 is 3503041662.

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

It is not a de Polignac number, because 2661403053 - 2⁴ = 2661403037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2661403053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661403013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32176 + ... + 79737.

It is an arithmetic number, because the mean of its divisors is an integer number (443627096).

Almost surely, 2^2661403053 is an apocalyptic number.

It is an amenable number.

2661403053 is a deficient number, since it is larger than the sum of its proper divisors (887613715).

2661403053 is a wasteful number, since it uses less digits than its factorization.

2661403053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119843.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 2661403053 is about 51588.7880551579. The cubic root of 2661403053 is about 1385.8095512594.

The spelling of 2661403053 in words is "two billion, six hundred sixty-one million, four hundred three thousand, fifty-three".