1664510166 has 48 divisors (see below), whose sum is σ = 3937237200. Its totient is φ = 504020160.

The previous prime is 1664510153. The next prime is 1664510173. The reversal of 1664510166 is 6610154661.

It is a happy number.

1664510166 is a `hidden beast` number, since 1 + 6 + 645 + 1 + 0 + 1 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1664510166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 380560 + ... + 384908.

It is an arithmetic number, because the mean of its divisors is an integer number (82025775).

Almost surely, 2^1664510166 is an apocalyptic number.

1664510166 is an abundant number, since it is smaller than the sum of its proper divisors (2272727034).

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

1664510166 is a wasteful number, since it uses less digits than its factorization.

1664510166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301 (or 6298 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 1664510166 is about 40798.4088660330. The cubic root of 1664510166 is about 1185.1195179350.

The spelling of 1664510166 in words is "one billion, six hundred sixty-four million, five hundred ten thousand, one hundred sixty-six".