66635155624241 has 8 divisors (see below), whose sum is σ = 67555567394304. Its totient is φ = 65714949298080.

The previous prime is 66635155624229. The next prime is 66635155624253. The reversal of 66635155624241 is 14242655153666.

It is an interprime number because it is at equal distance from previous prime (66635155624229) and next prime (66635155624253).

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 66635155624241 - 2¹⁴ = 66635155607857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66635155621241) 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, 50707745 + ... + 52005246.

It is an arithmetic number, because the mean of its divisors is an integer number (8444445924288).

Almost surely, 2^{66635155624241} is an apocalyptic number.

It is an amenable number.

66635155624241 is a deficient number, since it is larger than the sum of its proper divisors (920411770063).

66635155624241 is a wasteful number, since it uses less digits than its factorization.

66635155624241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102721951.

The product of its digits is 31104000, while the sum is 56.

The spelling of 66635155624241 in words is "sixty-six trillion, six hundred thirty-five billion, one hundred fifty-five million, six hundred twenty-four thousand, two hundred forty-one".