64666060260 has 48 divisors (see below), whose sum is σ = 182667332736. Its totient is φ = 17091676672.

The previous prime is 64666060253. The next prime is 64666060267. The reversal of 64666060260 is 6206066646.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (64666060253) and next prime (64666060267).

It is not an unprimeable number, because it can be changed into a prime (64666060267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4762104 + ... + 4775663.

It is an arithmetic number, because the mean of its divisors is an integer number (3805569432).

Almost surely, 2^64666060260 is an apocalyptic number.

64666060260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64666060260 is an abundant number, since it is smaller than the sum of its proper divisors (118001272476).

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

64666060260 is a wasteful number, since it uses less digits than its factorization.

64666060260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9537892 (or 9537890 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 64666060260 in words is "sixty-four billion, six hundred sixty-six million, sixty thousand, two hundred sixty".