667488020832 has 36 divisors (see below), whose sum is σ = 1898169060060. Its totient is φ = 222496006848.

The previous prime is 667488020777. The next prime is 667488020833. The reversal of 667488020832 is 238020884766.

667488020832 is a `hidden beast` number, since 6 + 67 + 488 + 0 + 20 + 83 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667488020833) 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 5 ways as a sum of consecutive naturals, for example, 1158833082 + ... + 1158833657.

It is an arithmetic number, because the mean of its divisors is an integer number (52726918335).

Almost surely, 2^667488020832 is an apocalyptic number.

It is an amenable number.

667488020832 is an abundant number, since it is smaller than the sum of its proper divisors (1230681039228).

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

667488020832 is a wasteful number, since it uses less digits than its factorization.

667488020832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2317666755 (or 2317666744 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 667488020832 in words is "six hundred sixty-seven billion, four hundred eighty-eight million, twenty thousand, eight hundred thirty-two".