67216332 has 12 divisors (see below), whose sum is σ = 156838136. Its totient is φ = 22405440.

The previous prime is 67216307. The next prime is 67216333. The reversal of 67216332 is 23361276.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 67216332.

It is not an unprimeable number, because it can be changed into a prime (67216333) 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, 2800669 + ... + 2800692.

Almost surely, 2^67216332 is an apocalyptic number.

It is an amenable number.

67216332 is an abundant number, since it is smaller than the sum of its proper divisors (89621804).

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

67216332 is a wasteful number, since it uses less digits than its factorization.

67216332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5601368 (or 5601366 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 67216332 is about 8198.5567022495. The cubic root of 67216332 is about 406.5914761400.

The spelling of 67216332 in words is "sixty-seven million, two hundred sixteen thousand, three hundred thirty-two".