1217157151167 has 12 divisors (see below), whose sum is σ = 1850648300280. Its totient is φ = 768730832208.

The previous prime is 1217157151097. The next prime is 1217157151193. The reversal of 1217157151167 is 7611517517121.

1217157151167 is a `hidden beast` number, since 1 + 2 + 1 + 7 + 1 + 5 + 71 + 511 + 67 = 666.

It is not a de Polignac number, because 1217157151167 - 2¹¹ = 1217157149119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217157151667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3558938868 + ... + 3558939209.

It is an arithmetic number, because the mean of its divisors is an integer number (154220691690).

Almost surely, 2^{1217157151167} is an apocalyptic number.

1217157151167 is a deficient number, since it is larger than the sum of its proper divisors (633491149113).

1217157151167 is a wasteful number, since it uses less digits than its factorization.

1217157151167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117878102 (or 7117878099 counting only the distinct ones).

The product of its digits is 102900, while the sum is 45.

The spelling of 1217157151167 in words is "one trillion, two hundred seventeen billion, one hundred fifty-seven million, one hundred fifty-one thousand, one hundred sixty-seven".