111005506477 has 2 divisors, whose sum is σ = 111005506478. Its totient is φ = 111005506476.

The previous prime is 111005506453. The next prime is 111005506511. The reversal of 111005506477 is 774605500111.

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., 100252023876 + 10753482601 = 316626^2 + 103699^2 .

It is a cyclic number.

It is not a de Polignac number, because 111005506477 - 2¹¹ = 111005504429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111005506277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55502753238 + 55502753239.

It is an arithmetic number, because the mean of its divisors is an integer number (55502753239).

Almost surely, 2^111005506477 is an apocalyptic number.

It is an amenable number.

111005506477 is a deficient number, since it is larger than the sum of its proper divisors (1).

111005506477 is an equidigital number, since it uses as much as digits as its factorization.

111005506477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 37.

The spelling of 111005506477 in words is "one hundred eleven billion, five million, five hundred six thousand, four hundred seventy-seven".