67135680 has 84 divisors (see below), whose sum is σ = 230928672. Its totient is φ = 17902080.

The previous prime is 67135661. The next prime is 67135697. The reversal of 67135680 is 8653176.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8776 + ... + 14535.

Almost surely, 2^67135680 is an apocalyptic number.

67135680 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67135680 is an abundant number, since it is smaller than the sum of its proper divisors (163792992).

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

67135680 is a wasteful number, since it uses less digits than its factorization.

67135680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23334 (or 23321 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 67135680 is about 8193.6365552787. The cubic root of 67135680 is about 406.4287897847.

The spelling of 67135680 in words is "sixty-seven million, one hundred thirty-five thousand, six hundred eighty".