66119944 has 16 divisors (see below), whose sum is σ = 135245520. Its totient is φ = 30054480.

The previous prime is 66119941. The next prime is 66119947. The reversal of 66119944 is 44991166.

It is an interprime number because it is at equal distance from previous prime (66119941) and next prime (66119947).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66119897 and 66119906.

It is not an unprimeable number, because it can be changed into a prime (66119941) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375594 + ... + 375769.

It is an arithmetic number, because the mean of its divisors is an integer number (8452845).

Almost surely, 2^66119944 is an apocalyptic number.

It is an amenable number.

66119944 is an abundant number, since it is smaller than the sum of its proper divisors (69125576).

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

66119944 is a wasteful number, since it uses less digits than its factorization.

66119944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751380 (or 751376 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 66119944 is about 8131.4170966689. The cubic root of 66119944 is about 404.3686632516.

The spelling of 66119944 in words is "sixty-six million, one hundred nineteen thousand, nine hundred forty-four".