66654332 has 6 divisors (see below), whose sum is σ = 116645088. Its totient is φ = 33327164.

The previous prime is 66654323. The next prime is 66654373. The reversal of 66654332 is 23345666.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 66654292 and 66654301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8331788 + ... + 8331795.

It is an arithmetic number, because the mean of its divisors is an integer number (19440848).

Almost surely, 2^66654332 is an apocalyptic number.

It is an amenable number.

66654332 is a deficient number, since it is larger than the sum of its proper divisors (49990756).

66654332 is a wasteful number, since it uses less digits than its factorization.

66654332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16663587 (or 16663585 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

The square root of 66654332 is about 8164.2104333487. The cubic root of 66654332 is about 405.4551241844.

Adding to 66654332 its reverse (23345666), we get a palindrome (89999998).

It can be divided in two parts, 6665433 and 2, that multiplied together give a triangular number (13330866 = T₅₁₆₃).

The spelling of 66654332 in words is "sixty-six million, six hundred fifty-four thousand, three hundred thirty-two".