66532636 has 12 divisors (see below), whose sum is σ = 118909728. Its totient is φ = 32558432.

The previous prime is 66532607. The next prime is 66532681. The reversal of 66532636 is 63623566.

It is a junction number, because it is equal to n+sod(n) for n = 66532595 and 66532604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176761 + ... + 177136.

It is an arithmetic number, because the mean of its divisors is an integer number (9909144).

Almost surely, 2^66532636 is an apocalyptic number.

It is an amenable number.

66532636 is a deficient number, since it is larger than the sum of its proper divisors (52377092).

66532636 is a wasteful number, since it uses less digits than its factorization.

66532636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353948 (or 353946 counting only the distinct ones).

The product of its digits is 116640, while the sum is 37.

The square root of 66532636 is about 8156.7540112474. The cubic root of 66532636 is about 405.2082168684.

The spelling of 66532636 in words is "sixty-six million, five hundred thirty-two thousand, six hundred thirty-six".