2661166053 has 48 divisors (see below), whose sum is σ = 4808608896. Its totient is φ = 1380654720.

The previous prime is 2661166037. The next prime is 2661166061. The reversal of 2661166053 is 3506611662.

It is not a de Polignac number, because 2661166053 - 2⁴ = 2661166037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2661165999 and 2661166017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661166073) 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 47 ways as a sum of consecutive naturals, for example, 23326 + ... + 76592.

It is an arithmetic number, because the mean of its divisors is an integer number (100179352).

Almost surely, 2^2661166053 is an apocalyptic number.

It is an amenable number.

2661166053 is a deficient number, since it is larger than the sum of its proper divisors (2147442843).

2661166053 is a wasteful number, since it uses less digits than its factorization.

2661166053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53354 (or 53351 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2661166053 is about 51586.4909932823. The cubic root of 2661166053 is about 1385.7684142342.

The spelling of 2661166053 in words is "two billion, six hundred sixty-one million, one hundred sixty-six thousand, fifty-three".