667651503741 has 4 divisors (see below), whose sum is σ = 890202004992. Its totient is φ = 445101002492.

The previous prime is 667651503733. The next prime is 667651503749. The reversal of 667651503741 is 147305156766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (667651503733) and next prime (667651503749).

It is a cyclic number.

It is not a de Polignac number, because 667651503741 - 2³ = 667651503733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667651503749) 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 3 ways as a sum of consecutive naturals, for example, 111275250621 + ... + 111275250626.

It is an arithmetic number, because the mean of its divisors is an integer number (222550501248).

Almost surely, 2^667651503741 is an apocalyptic number.

It is an amenable number.

667651503741 is a deficient number, since it is larger than the sum of its proper divisors (222550501251).

667651503741 is a wasteful number, since it uses less digits than its factorization.

667651503741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222550501250.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 667651503741 in words is "six hundred sixty-seven billion, six hundred fifty-one million, five hundred three thousand, seven hundred forty-one".