111360671557 has 2 divisors, whose sum is σ = 111360671558. Its totient is φ = 111360671556.

The previous prime is 111360671551. The next prime is 111360671579. The reversal of 111360671557 is 755176063111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105339842721 + 6020828836 = 324561^2 + 77594^2 .

It is a cyclic number.

It is not a de Polignac number, because 111360671557 - 2³⁵ = 77000933189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111360671551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55680335778 + 55680335779.

It is an arithmetic number, because the mean of its divisors is an integer number (55680335779).

Almost surely, 2^111360671557 is an apocalyptic number.

It is an amenable number.

111360671557 is a deficient number, since it is larger than the sum of its proper divisors (1).

111360671557 is an equidigital number, since it uses as much as digits as its factorization.

111360671557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 43.

The spelling of 111360671557 in words is "one hundred eleven billion, three hundred sixty million, six hundred seventy-one thousand, five hundred fifty-seven".