1235165166 has 16 divisors (see below), whose sum is σ = 2744811600. Its totient is φ = 411721704.

The previous prime is 1235165161. The next prime is 1235165171. The reversal of 1235165166 is 6615615321.

1235165166 is a `hidden beast` number, since 123 + 5 + 16 + 516 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1235165161) and next prime (1235165171).

It is a self number, because there is not a number n which added to its sum of digits gives 1235165166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235165161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11436661 + ... + 11436768.

It is an arithmetic number, because the mean of its divisors is an integer number (171550725).

Almost surely, 2^1235165166 is an apocalyptic number.

1235165166 is an abundant number, since it is smaller than the sum of its proper divisors (1509646434).

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

1235165166 is a wasteful number, since it uses less digits than its factorization.

1235165166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22873440 (or 22873434 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1235165166 is about 35144.9166452277. The cubic root of 1235165166 is about 1072.9389508423.

The spelling of 1235165166 in words is "one billion, two hundred thirty-five million, one hundred sixty-five thousand, one hundred sixty-six".