666141070587 has 4 divisors (see below), whose sum is σ = 888188094120. Its totient is φ = 444094047056.

The previous prime is 666141070583. The next prime is 666141070591. The reversal of 666141070587 is 785070141666.

It is a happy number.

666141070587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (666141070583) and next prime (666141070591).

It is a cyclic number.

It is not a de Polignac number, because 666141070587 - 2² = 666141070583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (666141070583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111023511762 + ... + 111023511767.

It is an arithmetic number, because the mean of its divisors is an integer number (222047023530).

Almost surely, 2^666141070587 is an apocalyptic number.

666141070587 is a deficient number, since it is larger than the sum of its proper divisors (222047023533).

666141070587 is a wasteful number, since it uses less digits than its factorization.

666141070587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222047023532.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 666141070587 in words is "six hundred sixty-six billion, one hundred forty-one million, seventy thousand, five hundred eighty-seven".