66754032 has 20 divisors (see below), whose sum is σ = 172448040. Its totient is φ = 22251328.

The previous prime is 66754021. The next prime is 66754033. The reversal of 66754032 is 23045766.

It is a super-2 number, since 2×66754032² = 8912201576514048, which contains 22 as substring.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 66753984 and 66754002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66754033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695307 + ... + 695402.

It is an arithmetic number, because the mean of its divisors is an integer number (8622402).

Almost surely, 2^66754032 is an apocalyptic number.

It is an amenable number.

66754032 is an abundant number, since it is smaller than the sum of its proper divisors (105694008).

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

66754032 is a wasteful number, since it uses less digits than its factorization.

66754032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390720 (or 1390714 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 66754032 is about 8170.3140698507. The cubic root of 66754032 is about 405.6571802567.

Adding to 66754032 its reverse (23045766), we get a palindrome (89799798).

The spelling of 66754032 in words is "sixty-six million, seven hundred fifty-four thousand, thirty-two".