5661111067 has 2 divisors, whose sum is σ = 5661111068. Its totient is φ = 5661111066.

The previous prime is 5661111041. The next prime is 5661111073. The reversal of 5661111067 is 7601111665.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5661111067 is a prime.

It is not a weakly prime, because it can be changed into another prime (5661111767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2830555533 + 2830555534.

It is an arithmetic number, because the mean of its divisors is an integer number (2830555534).

Almost surely, 2^5661111067 is an apocalyptic number.

5661111067 is a deficient number, since it is larger than the sum of its proper divisors (1).

5661111067 is an equidigital number, since it uses as much as digits as its factorization.

5661111067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 5661111067 is about 75240.3553088368. The cubic root of 5661111067 is about 1782.2442620517.

The spelling of 5661111067 in words is "five billion, six hundred sixty-one million, one hundred eleven thousand, sixty-seven".