194331793966 has 32 divisors (see below), whose sum is σ = 315841991040. Its totient is φ = 89332778496.

The previous prime is 194331793933. The next prime is 194331793969. The reversal of 194331793966 is 669397133491.

It is a happy number.

It is a super-2 number, since 2×194331793966² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194331793969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177195 + ... + 648121.

It is an arithmetic number, because the mean of its divisors is an integer number (9870062220).

Almost surely, 2^194331793966 is an apocalyptic number.

194331793966 is a deficient number, since it is larger than the sum of its proper divisors (121510197074).

194331793966 is a wasteful number, since it uses less digits than its factorization.

194331793966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471228.

The product of its digits is 19840464, while the sum is 61.

The spelling of 194331793966 in words is "one hundred ninety-four billion, three hundred thirty-one million, seven hundred ninety-three thousand, nine hundred sixty-six".