66024431325460 has 24 divisors (see below), whose sum is σ = 138651485774760. Its totient is φ = 26409738246144.

The previous prime is 66024431325329. The next prime is 66024431325499. The reversal of 66024431325460 is 6452313442066.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2865998441476 + 63158432883984 = 1692926^2 + 7947228^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 66024431325460.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18498636 + ... + 21777244.

It is an arithmetic number, because the mean of its divisors is an integer number (5777145240615).

Almost surely, 2^{66024431325460} is an apocalyptic number.

It is an amenable number.

66024431325460 is an abundant number, since it is smaller than the sum of its proper divisors (72627054449300).

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

66024431325460 is a wasteful number, since it uses less digits than its factorization.

66024431325460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285515 (or 4285513 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 66024431325460 in words is "sixty-six trillion, twenty-four billion, four hundred thirty-one million, three hundred twenty-five thousand, four hundred sixty".