166227635377361 has 8 divisors (see below), whose sum is σ = 166291511085504. Its totient is φ = 166163771526480.

The previous prime is 166227635377351. The next prime is 166227635377399. The reversal of 166227635377361 is 163773536722661.

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 166227635377361 - 2¹⁰ = 166227635376337 is a prime.

It is a super-4 number, since 4×166227635377361⁴ (a number of 58 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166227635377351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25130306 + ... + 31048148.

It is an arithmetic number, because the mean of its divisors is an integer number (20786438885688).

Almost surely, 2^{166227635377361} is an apocalyptic number.

It is an amenable number.

166227635377361 is a deficient number, since it is larger than the sum of its proper divisors (63875708143).

166227635377361 is an equidigital number, since it uses as much as digits as its factorization.

166227635377361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5928631.

The product of its digits is 240045120, while the sum is 65.

The spelling of 166227635377361 in words is "one hundred sixty-six trillion, two hundred twenty-seven billion, six hundred thirty-five million, three hundred seventy-seven thousand, three hundred sixty-one".