11945140166 has 8 divisors (see below), whose sum is σ = 17931593064. Its totient is φ = 5967942480.

The previous prime is 11945140147. The next prime is 11945140211. The reversal of 11945140166 is 66104154911.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2310575 + ... + 2315738.

It is an arithmetic number, because the mean of its divisors is an integer number (2241449133).

Almost surely, 2^11945140166 is an apocalyptic number.

11945140166 is a deficient number, since it is larger than the sum of its proper divisors (5986452898).

11945140166 is a wasteful number, since it uses less digits than its factorization.

11945140166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4627606.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 11945140166 in words is "eleven billion, nine hundred forty-five million, one hundred forty thousand, one hundred sixty-six".