1664105610 has 32 divisors (see below), whose sum is σ = 3995127360. Its totient is φ = 443619968.

The previous prime is 1664105609. The next prime is 1664105627. The reversal of 1664105610 is 165014661.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115381 + ... + 128999.

It is an arithmetic number, because the mean of its divisors is an integer number (124847730).

Almost surely, 2^1664105610 is an apocalyptic number.

1664105610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1664105610 is an abundant number, since it is smaller than the sum of its proper divisors (2331021750).

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

1664105610 is a wasteful number, since it uses less digits than its factorization.

1664105610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17702.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1664105610 is about 40793.4505772679. The cubic root of 1664105610 is about 1185.0234964808.

The spelling of 1664105610 in words is "one billion, six hundred sixty-four million, one hundred five thousand, six hundred ten".