66271112505001 has 8 divisors (see below), whose sum is σ = 67868764419104. Its totient is φ = 64676027102400.

The previous prime is 66271112504999. The next prime is 66271112505023. The reversal of 66271112505001 is 10050521117266.

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 66271112505001 - 2¹ = 66271112504999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66271112515001) 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, 641575611 + ... + 641678896.

It is an arithmetic number, because the mean of its divisors is an integer number (8483595552388).

Almost surely, 2^{66271112505001} is an apocalyptic number.

It is an amenable number.

66271112505001 is a deficient number, since it is larger than the sum of its proper divisors (1597651914103).

66271112505001 is a wasteful number, since it uses less digits than its factorization.

66271112505001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283255751.

The product of its (nonzero) digits is 25200, while the sum is 37.

The spelling of 66271112505001 in words is "sixty-six trillion, two hundred seventy-one billion, one hundred twelve million, five hundred five thousand, one".