67681560 has 32 divisors (see below), whose sum is σ = 203045040. Its totient is φ = 18048384.

The previous prime is 67681541. The next prime is 67681567. The reversal of 67681560 is 6518676.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67681567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281887 + ... + 282126.

Almost surely, 2^67681560 is an apocalyptic number.

67681560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67681560 is an abundant number, since it is smaller than the sum of its proper divisors (135363480).

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

67681560 is a wasteful number, since it uses less digits than its factorization.

67681560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564027 (or 564023 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 67681560 is about 8226.8803321794. The cubic root of 67681560 is about 407.5273746775.

The spelling of 67681560 in words is "sixty-seven million, six hundred eighty-one thousand, five hundred sixty".