65670678 has 24 divisors (see below), whose sum is σ = 142555608. Its totient is φ = 21848832.

The previous prime is 65670673. The next prime is 65670691. The reversal of 65670678 is 87607656.

65670678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65670673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7225 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (5939817).

Almost surely, 2^65670678 is an apocalyptic number.

65670678 is an abundant number, since it is smaller than the sum of its proper divisors (76884930).

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

65670678 is a wasteful number, since it uses less digits than its factorization.

65670678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908 (or 6905 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 65670678 is about 8103.7446899566. The cubic root of 65670678 is about 403.4507248092.

The spelling of 65670678 in words is "sixty-five million, six hundred seventy thousand, six hundred seventy-eight".