67144056 has 32 divisors (see below), whose sum is σ = 191840640. Its totient is φ = 19183968.

The previous prime is 67144031. The next prime is 67144069. The reversal of 67144056 is 65044176.

It is a super-2 number, since 2×67144056² = 9016648512262272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199666 + ... + 200001.

It is an arithmetic number, because the mean of its divisors is an integer number (5995020).

Almost surely, 2^67144056 is an apocalyptic number.

It is an amenable number.

67144056 is an abundant number, since it is smaller than the sum of its proper divisors (124696584).

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

67144056 is a wasteful number, since it uses less digits than its factorization.

67144056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399683 (or 399679 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 67144056 is about 8194.1476676955. The cubic root of 67144056 is about 406.4456914083.

The spelling of 67144056 in words is "sixty-seven million, one hundred forty-four thousand, fifty-six".