66360311424 has 160 divisors (see below), whose sum is σ = 215440964640. Its totient is φ = 20109150720.

The previous prime is 66360311401. The next prime is 66360311431. The reversal of 66360311424 is 42411306366.

66360311424 is a `hidden beast` number, since 6 + 6 + 3 + 603 + 1 + 1 + 42 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 176884 + ... + 404979.

It is an arithmetic number, because the mean of its divisors is an integer number (1346506029).

Almost surely, 2^66360311424 is an apocalyptic number.

66360311424 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66360311424 is an abundant number, since it is smaller than the sum of its proper divisors (149080653216).

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

66360311424 is a wasteful number, since it uses less digits than its factorization.

66360311424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581900 (or 581879 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 66360311424 in words is "sixty-six billion, three hundred sixty million, three hundred eleven thousand, four hundred twenty-four".