166888533716 has 6 divisors (see below), whose sum is σ = 292054934010. Its totient is φ = 83444266856.

The previous prime is 166888533653. The next prime is 166888533719. The reversal of 166888533716 is 617335888661.

It can be written as a sum of positive squares in only one way, i.e., 163333989316 + 3554544400 = 404146^2 + 59620^2 .

It is a super-4 number, since 4×166888533716⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166888533719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20861066711 + ... + 20861066718.

It is an arithmetic number, because the mean of its divisors is an integer number (48675822335).

Almost surely, 2^166888533716 is an apocalyptic number.

It is an amenable number.

166888533716 is a deficient number, since it is larger than the sum of its proper divisors (125166400294).

166888533716 is a wasteful number, since it uses less digits than its factorization.

166888533716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41722133433 (or 41722133431 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 62.

The spelling of 166888533716 in words is "one hundred sixty-six billion, eight hundred eighty-eight million, five hundred thirty-three thousand, seven hundred sixteen".