166104456105 has 32 divisors (see below), whose sum is σ = 319719859200. Its totient is φ = 71936966592.

The previous prime is 166104456083. The next prime is 166104456127. The reversal of 166104456105 is 501654401661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (166104456083) and next prime (166104456127).

It is not a de Polignac number, because 166104456105 - 2¹⁸ = 166104193961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41628195 + ... + 41632184.

It is an arithmetic number, because the mean of its divisors is an integer number (9991245600).

Almost surely, 2^166104456105 is an apocalyptic number.

166104456105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166104456105 is a deficient number, since it is larger than the sum of its proper divisors (153615403095).

166104456105 is a wasteful number, since it uses less digits than its factorization.

166104456105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83260413.

The product of its (nonzero) digits is 86400, while the sum is 39.

Adding to 166104456105 its reverse (501654401661), we get a palindrome (667758857766).

The spelling of 166104456105 in words is "one hundred sixty-six billion, one hundred four million, four hundred fifty-six thousand, one hundred five".