11657166643 has 2 divisors, whose sum is σ = 11657166644. Its totient is φ = 11657166642.

The previous prime is 11657166637. The next prime is 11657166649. The reversal of 11657166643 is 34666175611.

It is a balanced prime because it is at equal distance from previous prime (11657166637) and next prime (11657166649).

It is a cyclic number.

It is not a de Polignac number, because 11657166643 - 2¹⁷ = 11657035571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11657166593 and 11657166602.

It is not a weakly prime, because it can be changed into another prime (11657166649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5828583321 + 5828583322.

It is an arithmetic number, because the mean of its divisors is an integer number (5828583322).

Almost surely, 2^11657166643 is an apocalyptic number.

11657166643 is a deficient number, since it is larger than the sum of its proper divisors (1).

11657166643 is an equidigital number, since it uses as much as digits as its factorization.

11657166643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 46.

The spelling of 11657166643 in words is "eleven billion, six hundred fifty-seven million, one hundred sixty-six thousand, six hundred forty-three".