166666668548 has 48 divisors (see below), whose sum is σ = 304442639424. Its totient is φ = 79770579840.

The previous prime is 166666668541. The next prime is 166666668563. The reversal of 166666668548 is 845866666661.

It is a super-4 number, since 4×166666668548⁴ (a number of 46 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (166666668541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2877611 + ... + 2934957.

It is an arithmetic number, because the mean of its divisors is an integer number (6342554988).

Almost surely, 2^166666668548 is an apocalyptic number.

It is an amenable number.

166666668548 is a deficient number, since it is larger than the sum of its proper divisors (137775970876).

166666668548 is a wasteful number, since it uses less digits than its factorization.

166666668548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57732 (or 57730 counting only the distinct ones).

The product of its digits is 358318080, while the sum is 68.

The spelling of 166666668548 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred sixty-eight thousand, five hundred forty-eight".