117777645167 has 24 divisors (see below), whose sum is σ = 147929095296. Its totient is φ = 91795800096.

The previous prime is 117777645157. The next prime is 117777645173. The reversal of 117777645167 is 761546777711.

It is not a de Polignac number, because 117777645167 - 2¹² = 117777641071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117777645157) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663713 + ... + 822234.

It is an arithmetic number, because the mean of its divisors is an integer number (6163712304).

Almost surely, 2^117777645167 is an apocalyptic number.

117777645167 is a deficient number, since it is larger than the sum of its proper divisors (30151450129).

117777645167 is a wasteful number, since it uses less digits than its factorization.

117777645167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486047 (or 1486034 counting only the distinct ones).

The product of its digits is 12101040, while the sum is 59.

The spelling of 117777645167 in words is "one hundred seventeen billion, seven hundred seventy-seven million, six hundred forty-five thousand, one hundred sixty-seven".