667209605082 has 32 divisors (see below), whose sum is σ = 1368846670464. Its totient is φ = 216680217600.

The previous prime is 667209605077. The next prime is 667209605087. The reversal of 667209605082 is 280506902766.

It is an interprime number because it is at equal distance from previous prime (667209605077) and next prime (667209605087).

It is a super-2 number, since 2×667209605082² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (667209605087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1686519 + ... + 2044202.

It is an arithmetic number, because the mean of its divisors is an integer number (42776458452).

Almost surely, 2^667209605082 is an apocalyptic number.

667209605082 is an abundant number, since it is smaller than the sum of its proper divisors (701637065382).

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

667209605082 is a wasteful number, since it uses less digits than its factorization.

667209605082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3731494.

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 667209605082 in words is "six hundred sixty-seven billion, two hundred nine million, six hundred five thousand, eighty-two".