67065761 has 8 divisors (see below), whose sum is σ = 78211200. Its totient is φ = 57484644.

The previous prime is 67065737. The next prime is 67065787. The reversal of 67065761 is 16756076.

It is a de Polignac number, because none of the positive numbers 2^k-67065761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67065701) 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, 97421 + ... + 98106.

It is an arithmetic number, because the mean of its divisors is an integer number (9776400).

Almost surely, 2^67065761 is an apocalyptic number.

It is an amenable number.

67065761 is a deficient number, since it is larger than the sum of its proper divisors (11145439).

67065761 is an equidigital number, since it uses as much as digits as its factorization.

67065761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195548 (or 195534 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 67065761 is about 8189.3687790940. The cubic root of 67065761 is about 406.2876479193.

The spelling of 67065761 in words is "sixty-seven million, sixty-five thousand, seven hundred sixty-one".