66132436 has 6 divisors (see below), whose sum is σ = 115731770. Its totient is φ = 33066216.

The previous prime is 66132427. The next prime is 66132439. The reversal of 66132436 is 63423166.

It can be written as a sum of positive squares in only one way, i.e., 48860100 + 17272336 = 6990^2 + 4156^2 .

It is a junction number, because it is equal to n+sod(n) for n = 66132398 and 66132407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66132439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8266551 + ... + 8266558.

Almost surely, 2^66132436 is an apocalyptic number.

It is an amenable number.

66132436 is a deficient number, since it is larger than the sum of its proper divisors (49599334).

66132436 is a wasteful number, since it uses less digits than its factorization.

66132436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16533113 (or 16533111 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 66132436 is about 8132.1851921854. The cubic root of 66132436 is about 404.3941273549.

The spelling of 66132436 in words is "sixty-six million, one hundred thirty-two thousand, four hundred thirty-six".