66210470424 has 96 divisors (see below), whose sum is σ = 206069703840. Its totient is φ = 18812736000.

The previous prime is 66210470399. The next prime is 66210470477. The reversal of 66210470424 is 42407401266.

66210470424 is a `hidden beast` number, since 6 + 62 + 104 + 70 + 424 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 271677 + ... + 454124.

It is an arithmetic number, because the mean of its divisors is an integer number (2146559415).

Almost surely, 2^66210470424 is an apocalyptic number.

It is an amenable number.

66210470424 is an abundant number, since it is smaller than the sum of its proper divisors (139859233416).

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

66210470424 is a wasteful number, since it uses less digits than its factorization.

66210470424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726001 (or 725994 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The spelling of 66210470424 in words is "sixty-six billion, two hundred ten million, four hundred seventy thousand, four hundred twenty-four".