67616465 has 16 divisors (see below), whose sum is σ = 92910720. Its totient is φ = 46275840.

The previous prime is 67616453. The next prime is 67616473. The reversal of 67616465 is 56461676.

It is not a de Polignac number, because 67616465 - 2⁴ = 67616449 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20105 + ... + 23225.

It is an arithmetic number, because the mean of its divisors is an integer number (5806920).

Almost surely, 2^67616465 is an apocalyptic number.

It is an amenable number.

67616465 is a deficient number, since it is larger than the sum of its proper divisors (25294255).

67616465 is a wasteful number, since it uses less digits than its factorization.

67616465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3752.

The product of its digits is 181440, while the sum is 41.

The square root of 67616465 is about 8222.9231420463. The cubic root of 67616465 is about 407.3966817496.

The spelling of 67616465 in words is "sixty-seven million, six hundred sixteen thousand, four hundred sixty-five".