667231234155 has 24 divisors (see below), whose sum is σ = 1158112005648. Its totient is φ = 355371160896.

The previous prime is 667231234097. The next prime is 667231234213. The reversal of 667231234155 is 551432132766.

It is an interprime number because it is at equal distance from previous prime (667231234097) and next prime (667231234213).

It is not a de Polignac number, because 667231234155 - 2⁷ = 667231234027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 667231234155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10081177 + ... + 10147146.

It is an arithmetic number, because the mean of its divisors is an integer number (48254666902).

Almost surely, 2^667231234155 is an apocalyptic number.

667231234155 is a deficient number, since it is larger than the sum of its proper divisors (490880771493).

667231234155 is a wasteful number, since it uses less digits than its factorization.

667231234155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20229067 (or 20229064 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 667231234155 in words is "six hundred sixty-seven billion, two hundred thirty-one million, two hundred thirty-four thousand, one hundred fifty-five".