2618661141 has 12 divisors (see below), whose sum is σ = 3789777420. Its totient is φ = 1742420160.

The previous prime is 2618661139. The next prime is 2618661203. The reversal of 2618661141 is 1411668162.

2618661141 is a `hidden beast` number, since 26 + 18 + 6 + 611 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1019461041 + 1599200100 = 31929^2 + 39990^2 .

It is not a de Polignac number, because 2618661141 - 2¹ = 2618661139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2618661096 and 2618661105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2618660141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274546 + ... + 283923.

It is an arithmetic number, because the mean of its divisors is an integer number (315814785).

Almost surely, 2^2618661141 is an apocalyptic number.

It is an amenable number.

2618661141 is a deficient number, since it is larger than the sum of its proper divisors (1171116279).

2618661141 is a wasteful number, since it uses less digits than its factorization.

2618661141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558996 (or 558993 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 2618661141 is about 51172.8555095375. The cubic root of 2618661141 is about 1378.3508166158.

The spelling of 2618661141 in words is "two billion, six hundred eighteen million, six hundred sixty-one thousand, one hundred forty-one".