66074036 has 48 divisors (see below), whose sum is σ = 141152256. Its totient is φ = 26417664.

The previous prime is 66074027. The next prime is 66074069. The reversal of 66074036 is 63047066.

It is a junction number, because it is equal to n+sod(n) for n = 66073993 and 66074011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59906 + ... + 60998.

It is an arithmetic number, because the mean of its divisors is an integer number (2940672).

Almost surely, 2^66074036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66074036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70576128).

66074036 is an abundant number, since it is smaller than the sum of its proper divisors (75078220).

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

66074036 is a wasteful number, since it uses less digits than its factorization.

66074036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1246 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 66074036 is about 8128.5937283149. The cubic root of 66074036 is about 404.2750553149.

The spelling of 66074036 in words is "sixty-six million, seventy-four thousand, thirty-six".