11611401577 has 2 divisors, whose sum is σ = 11611401578. Its totient is φ = 11611401576.

The previous prime is 11611401541. The next prime is 11611401589. The reversal of 11611401577 is 77510411611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11163190336 + 448211241 = 105656^2 + 21171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11611401577 is a prime.

It is not a weakly prime, because it can be changed into another prime (11611401077) 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 as a sum of consecutive naturals, namely, 5805700788 + 5805700789.

It is an arithmetic number, because the mean of its divisors is an integer number (5805700789).

Almost surely, 2^11611401577 is an apocalyptic number.

It is an amenable number.

11611401577 is a deficient number, since it is larger than the sum of its proper divisors (1).

11611401577 is an equidigital number, since it uses as much as digits as its factorization.

11611401577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 34.

The spelling of 11611401577 in words is "eleven billion, six hundred eleven million, four hundred one thousand, five hundred seventy-seven".