162166791 has 8 divisors (see below), whose sum is σ = 228941424. Its totient is φ = 101751680.

The previous prime is 162166787. The next prime is 162166847. The reversal of 162166791 is 197661261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 162166791 - 2² = 162166787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162166091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1589820 + ... + 1589921.

It is an arithmetic number, because the mean of its divisors is an integer number (28617678).

Almost surely, 2^162166791 is an apocalyptic number.

162166791 is a deficient number, since it is larger than the sum of its proper divisors (66774633).

162166791 is a wasteful number, since it uses less digits than its factorization.

162166791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3179761.

The product of its digits is 27216, while the sum is 39.

The square root of 162166791 is about 12734.4725450252. The cubic root of 162166791 is about 545.3231997052.

The spelling of 162166791 in words is "one hundred sixty-two million, one hundred sixty-six thousand, seven hundred ninety-one".