667055355684 has 24 divisors (see below), whose sum is σ = 1557125733408. Its totient is φ = 222257037120.

The previous prime is 667055355683. The next prime is 667055355719. The reversal of 667055355684 is 486553550766.

It is a super-2 number, since 2×667055355684² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667055355683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11814177 + ... + 11870504.

It is an arithmetic number, because the mean of its divisors is an integer number (64880238892).

Almost surely, 2^667055355684 is an apocalyptic number.

It is an amenable number.

667055355684 is an abundant number, since it is smaller than the sum of its proper divisors (890070377724).

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

667055355684 is a wasteful number, since it uses less digits than its factorization.

667055355684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23687035 (or 23687033 counting only the distinct ones).

The product of its (nonzero) digits is 90720000, while the sum is 60.

The spelling of 667055355684 in words is "six hundred sixty-seven billion, fifty-five million, three hundred fifty-five thousand, six hundred eighty-four".