67770056 has 16 divisors (see below), whose sum is σ = 127157040. Its totient is φ = 33861520.

The previous prime is 67770049. The next prime is 67770067. The reversal of 67770056 is 65007776.

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, 18575 + ... + 21921.

It is an arithmetic number, because the mean of its divisors is an integer number (7947315).

Almost surely, 2^67770056 is an apocalyptic number.

It is an amenable number.

67770056 is a deficient number, since it is larger than the sum of its proper divisors (59386984).

67770056 is a wasteful number, since it uses less digits than its factorization.

67770056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5884 (or 5880 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 67770056 is about 8232.2570416624. The cubic root of 67770056 is about 407.7049160709.

The spelling of 67770056 in words is "sixty-seven million, seven hundred seventy thousand, fifty-six".