67545416 has 8 divisors (see below), whose sum is σ = 126647670. Its totient is φ = 33772704.

The previous prime is 67545391. The next prime is 67545433. The reversal of 67545416 is 61454576.

It can be written as a sum of positive squares in only one way, i.e., 66357316 + 1188100 = 8146^2 + 1090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×67545416² = 9124766445226112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67545416.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221581 + ... + 4221596.

Almost surely, 2^67545416 is an apocalyptic number.

It is an amenable number.

67545416 is a deficient number, since it is larger than the sum of its proper divisors (59102254).

67545416 is a wasteful number, since it uses less digits than its factorization.

67545416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443183 (or 8443179 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 67545416 is about 8218.6018275617. The cubic root of 67545416 is about 407.2539390466.

The spelling of 67545416 in words is "sixty-seven million, five hundred forty-five thousand, four hundred sixteen".