66141005 has 8 divisors (see below), whose sum is σ = 90707712. Its totient is φ = 45353808.

The previous prime is 66140917. The next prime is 66141013. The reversal of 66141005 is 50014166.

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

It is a cyclic number.

It is not a de Polignac number, because 66141005 - 2¹⁸ = 65878861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 944837 + ... + 944906.

It is an arithmetic number, because the mean of its divisors is an integer number (11338464).

Almost surely, 2^66141005 is an apocalyptic number.

It is an amenable number.

66141005 is a deficient number, since it is larger than the sum of its proper divisors (24566707).

66141005 is a wasteful number, since it uses less digits than its factorization.

66141005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889755.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 66141005 is about 8132.7120322805. The cubic root of 66141005 is about 404.4115928319.

The spelling of 66141005 in words is "sixty-six million, one hundred forty-one thousand, five".