667232838740 has 48 divisors (see below), whose sum is σ = 1518008591232. Its totient is φ = 244887651456.

The previous prime is 667232838739. The next prime is 667232838743. The reversal of 667232838740 is 47838232766.

It is a super-4 number, since 4×667232838740⁴ (a number of 48 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667232838743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7640054 + ... + 7726893.

It is an arithmetic number, because the mean of its divisors is an integer number (31625178984).

Almost surely, 2^667232838740 is an apocalyptic number.

It is an amenable number.

667232838740 is an abundant number, since it is smaller than the sum of its proper divisors (850775752492).

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

667232838740 is a wasteful number, since it uses less digits than its factorization.

667232838740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15367136 (or 15367134 counting only the distinct ones).

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 667232838740 in words is "six hundred sixty-seven billion, two hundred thirty-two million, eight hundred thirty-eight thousand, seven hundred forty".