1207157166 has 12 divisors (see below), whose sum is σ = 2615507232. Its totient is φ = 402385716.

The previous prime is 1207157129. The next prime is 1207157183. The reversal of 1207157166 is 6617517021.

1207157166 is a `hidden beast` number, since 1 + 20 + 7 + 1 + 571 + 66 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1207157166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33532126 + ... + 33532161.

It is an arithmetic number, because the mean of its divisors is an integer number (217958936).

Almost surely, 2^1207157166 is an apocalyptic number.

1207157166 is an abundant number, since it is smaller than the sum of its proper divisors (1408350066).

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

1207157166 is a wasteful number, since it uses less digits than its factorization.

1207157166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67064295 (or 67064292 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1207157166 is about 34744.1673666243. The cubic root of 1207157166 is about 1064.7670561082.

The spelling of 1207157166 in words is "one billion, two hundred seven million, one hundred fifty-seven thousand, one hundred sixty-six".