166011561514 has 16 divisors (see below), whose sum is σ = 262131814080. Its totient is φ = 78634566720.

The previous prime is 166011561511. The next prime is 166011561539. The reversal of 166011561514 is 415165110661.

166011561514 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166011561511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1812402 + ... + 1901794.

It is an arithmetic number, because the mean of its divisors is an integer number (16383238380).

Almost surely, 2^166011561514 is an apocalyptic number.

166011561514 is a deficient number, since it is larger than the sum of its proper divisors (96120252566).

166011561514 is a wasteful number, since it uses less digits than its factorization.

166011561514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138285.

The product of its (nonzero) digits is 21600, while the sum is 37.

The spelling of 166011561514 in words is "one hundred sixty-six billion, eleven million, five hundred sixty-one thousand, five hundred fourteen".