166561445136114 has 96 divisors (see below), whose sum is σ = 413338201820544. Its totient is φ = 47485181318400.

The previous prime is 166561445136091. The next prime is 166561445136137. The reversal of 166561445136114 is 411631544165661.

166561445136114 is a `hidden beast` number, since 1 + 6 + 6 + 5 + 6 + 1 + 4 + 4 + 5 + 13 + 611 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (166561445136091) and next prime (166561445136137).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 145809417 + ... + 146947299.

It is an arithmetic number, because the mean of its divisors is an integer number (4305606268964).

Almost surely, 2^{166561445136114} is an apocalyptic number.

166561445136114 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166561445136114 is an abundant number, since it is smaller than the sum of its proper divisors (246776756684430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166561445136114 is a wasteful number, since it uses less digits than its factorization.

166561445136114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140432 (or 1140429 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 166561445136114 in words is "one hundred sixty-six trillion, five hundred sixty-one billion, four hundred forty-five million, one hundred thirty-six thousand, one hundred fourteen".