66892194 has 24 divisors (see below), whose sum is σ = 147391920. Its totient is φ = 21919128.

The previous prime is 66892181. The next prime is 66892207. The reversal of 66892194 is 49129866.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66892181) and next prime (66892207).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30432 + ... + 32555.

It is an arithmetic number, because the mean of its divisors is an integer number (6141330).

Almost surely, 2^66892194 is an apocalyptic number.

66892194 is an abundant number, since it is smaller than the sum of its proper divisors (80499726).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66892194 is a wasteful number, since it uses less digits than its factorization.

66892194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63054 (or 63051 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 66892194 is about 8178.7648211695. The cubic root of 66892194 is about 405.9368526765.

The spelling of 66892194 in words is "sixty-six million, eight hundred ninety-two thousand, one hundred ninety-four".