66424060420 has 24 divisors (see below), whose sum is σ = 146832134400. Its totient is φ = 25171222752.

The previous prime is 66424060411. The next prime is 66424060433. The reversal of 66424060420 is 2406042466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87399700 + ... + 87400459.

It is an arithmetic number, because the mean of its divisors is an integer number (6118005600).

Almost surely, 2^66424060420 is an apocalyptic number.

It is an amenable number.

66424060420 is an abundant number, since it is smaller than the sum of its proper divisors (80408073980).

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

66424060420 is a wasteful number, since it uses less digits than its factorization.

66424060420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174800187 (or 174800185 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 66424060420 in words is "sixty-six billion, four hundred twenty-four million, sixty thousand, four hundred twenty".