66532704 has 96 divisors (see below), whose sum is σ = 201067776. Its totient is φ = 18869760.

The previous prime is 66532693. The next prime is 66532729. The reversal of 66532704 is 40723566.

It is a tau number, because it is divible by the number of its divisors (96).

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, 121359 + ... + 121905.

It is an arithmetic number, because the mean of its divisors is an integer number (2094456).

Almost surely, 2^66532704 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 66532704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100533888).

66532704 is an abundant number, since it is smaller than the sum of its proper divisors (134535072).

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

66532704 is a wasteful number, since it uses less digits than its factorization.

66532704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 740 counting only the distinct ones).

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

The square root of 66532704 is about 8156.7581795711. The cubic root of 66532704 is about 405.2083549167.

The spelling of 66532704 in words is "sixty-six million, five hundred thirty-two thousand, seven hundred four".