66162044334455 has 8 divisors (see below), whose sum is σ = 79397026700352. Its totient is φ = 52927919801568.

The previous prime is 66162044334439. The next prime is 66162044334457. The reversal of 66162044334455 is 55443344026166.

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 66162044334455 - 2⁴ = 66162044334439 is a prime.

It is a super-2 number, since 2×66162044334455² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66162044334397 and 66162044334406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66162044334457) 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, 214288559 + ... + 214597088.

It is an arithmetic number, because the mean of its divisors is an integer number (9924628337544).

Almost surely, 2^{66162044334455} is an apocalyptic number.

66162044334455 is a deficient number, since it is larger than the sum of its proper divisors (13234982365897).

66162044334455 is a wasteful number, since it uses less digits than its factorization.

66162044334455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428916505.

The product of its (nonzero) digits is 24883200, while the sum is 53.

The spelling of 66162044334455 in words is "sixty-six trillion, one hundred sixty-two billion, forty-four million, three hundred thirty-four thousand, four hundred fifty-five".