667657051141 has 8 divisors (see below), whose sum is σ = 673130376864. Its totient is φ = 662189433360.

The previous prime is 667657051129. The next prime is 667657051157. The reversal of 667657051141 is 141150756766.

667657051141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 667657051141 - 2⁵ = 667657051109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667657051121) 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, 1191930 + ... + 1660123.

It is an arithmetic number, because the mean of its divisors is an integer number (84141297108).

Almost surely, 2^667657051141 is an apocalyptic number.

It is an amenable number.

667657051141 is a deficient number, since it is larger than the sum of its proper divisors (5473325723).

667657051141 is a wasteful number, since it uses less digits than its factorization.

667657051141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853971.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 667657051141 in words is "six hundred sixty-seven billion, six hundred fifty-seven million, fifty-one thousand, one hundred forty-one".