66319084 has 24 divisors (see below), whose sum is σ = 125208720. Its totient is φ = 30554304.

The previous prime is 66319081. The next prime is 66319093. The reversal of 66319084 is 48091366.

It is not an unprimeable number, because it can be changed into a prime (66319081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52047 + ... + 53305.

It is an arithmetic number, because the mean of its divisors is an integer number (5217030).

Almost surely, 2^66319084 is an apocalyptic number.

It is an amenable number.

66319084 is a deficient number, since it is larger than the sum of its proper divisors (58889636).

66319084 is a wasteful number, since it uses less digits than its factorization.

66319084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2289 (or 2287 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 66319084 is about 8143.6529886777. The cubic root of 66319084 is about 404.7742154599.

The spelling of 66319084 in words is "sixty-six million, three hundred nineteen thousand, eighty-four".