667233114521 has 16 divisors (see below), whose sum is σ = 680272084800. Its totient is φ = 654326536128.

The previous prime is 667233114497. The next prime is 667233114533. The reversal of 667233114521 is 125411332766.

667233114521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 667233114521 - 2¹⁰ = 667233113497 is a prime.

It is a super-2 number, since 2×667233114521² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (667233144521) 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, 8235035 + ... + 8315663.

It is an arithmetic number, because the mean of its divisors is an integer number (42517005300).

Almost surely, 2^667233114521 is an apocalyptic number.

It is an amenable number.

667233114521 is a deficient number, since it is larger than the sum of its proper divisors (13038970279).

667233114521 is a wasteful number, since it uses less digits than its factorization.

667233114521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81448.

The product of its digits is 181440, while the sum is 41.

The spelling of 667233114521 in words is "six hundred sixty-seven billion, two hundred thirty-three million, one hundred fourteen thousand, five hundred twenty-one".