161166421094 has 8 divisors (see below), whose sum is σ = 276285293328. Its totient is φ = 69071323320.

The previous prime is 161166421093. The next prime is 161166421109. The reversal of 161166421094 is 490124661161.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161166421093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5755943597 + ... + 5755943624.

It is an arithmetic number, because the mean of its divisors is an integer number (34535661666).

Almost surely, 2^161166421094 is an apocalyptic number.

161166421094 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161166421094 is a deficient number, since it is larger than the sum of its proper divisors (115118872234).

161166421094 is a wasteful number, since it uses less digits than its factorization.

161166421094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11511887230.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 161166421094 in words is "one hundred sixty-one billion, one hundred sixty-six million, four hundred twenty-one thousand, ninety-four".