660166077055484 has 48 divisors (see below), whose sum is σ = 1178999065230336. Its totient is φ = 323329457505600.

The previous prime is 660166077055427. The next prime is 660166077055523. The reversal of 660166077055484 is 484550770661066.

It is a super-2 number, since 2×660166077055484² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 660166077055484.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4198623149 + ... + 4198780379.

It is an arithmetic number, because the mean of its divisors is an integer number (24562480525632).

Almost surely, 2^{660166077055484} is an apocalyptic number.

It is an amenable number.

660166077055484 is a deficient number, since it is larger than the sum of its proper divisors (518832988174852).

660166077055484 is a wasteful number, since it uses less digits than its factorization.

660166077055484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189306 (or 189304 counting only the distinct ones).

The product of its (nonzero) digits is 203212800, while the sum is 65.

The spelling of 660166077055484 in words is "six hundred sixty trillion, one hundred sixty-six billion, seventy-seven million, fifty-five thousand, four hundred eighty-four".