64660496 has 40 divisors (see below), whose sum is σ = 132595680. Its totient is φ = 30461184.

The previous prime is 64660493. The next prime is 64660501. The reversal of 64660496 is 69406646.

It is not an unprimeable number, because it can be changed into a prime (64660493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68540 + ... + 69476.

It is an arithmetic number, because the mean of its divisors is an integer number (3314892).

Almost surely, 2^64660496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64660496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66297840).

64660496 is an abundant number, since it is smaller than the sum of its proper divisors (67935184).

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

64660496 is a wasteful number, since it uses less digits than its factorization.

64660496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191 (or 1185 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 64660496 is about 8041.1750385127. The cubic root of 64660496 is about 401.3713266190.

It can be divided in two parts, 64660 and 496, that added together give a palindrome (65156).

The spelling of 64660496 in words is "sixty-four million, six hundred sixty thousand, four hundred ninety-six".