111607206157 has 2 divisors, whose sum is σ = 111607206158. Its totient is φ = 111607206156.

The previous prime is 111607206133. The next prime is 111607206197. The reversal of 111607206157 is 751602706111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98361267876 + 13245938281 = 313626^2 + 115091^2 .

It is a cyclic number.

It is not a de Polignac number, because 111607206157 - 2¹¹ = 111607204109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111607206197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55803603078 + 55803603079.

It is an arithmetic number, because the mean of its divisors is an integer number (55803603079).

Almost surely, 2^111607206157 is an apocalyptic number.

It is an amenable number.

111607206157 is a deficient number, since it is larger than the sum of its proper divisors (1).

111607206157 is an equidigital number, since it uses as much as digits as its factorization.

111607206157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 111607206157 in words is "one hundred eleven billion, six hundred seven million, two hundred six thousand, one hundred fifty-seven".