1115537166 has 24 divisors (see below), whose sum is σ = 2428460424. Its totient is φ = 370082160.

The previous prime is 1115537149. The next prime is 1115537173. The reversal of 1115537166 is 6617355111.

1115537166 is a `hidden beast` number, since 1 + 115 + 537 + 1 + 6 + 6 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115537166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143061 + ... + 150656.

It is an arithmetic number, because the mean of its divisors is an integer number (101185851).

Almost surely, 2^1115537166 is an apocalyptic number.

1115537166 is an abundant number, since it is smaller than the sum of its proper divisors (1312923258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115537166 is a wasteful number, since it uses less digits than its factorization.

1115537166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293936 (or 293933 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 1115537166 is about 33399.6581719035. The cubic root of 1115537166 is about 1037.1176247272.

The spelling of 1115537166 in words is "one billion, one hundred fifteen million, five hundred thirty-seven thousand, one hundred sixty-six".