1664466001 has 16 divisors (see below), whose sum is σ = 1896265728. Its totient is φ = 1446187600.

The previous prime is 1664465983. The next prime is 1664466071. The reversal of 1664466001 is 1006644661.

It is not a de Polignac number, because 1664466001 - 2⁵ = 1664465969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1664466071) 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, 486840 + ... + 490246.

It is an arithmetic number, because the mean of its divisors is an integer number (118516608).

Almost surely, 2^1664466001 is an apocalyptic number.

1664466001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1664466001 is a deficient number, since it is larger than the sum of its proper divisors (231799727).

1664466001 is a wasteful number, since it uses less digits than its factorization.

1664466001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5372.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1664466001 is about 40797.8676035893. The cubic root of 1664466001 is about 1185.1090361193.

The spelling of 1664466001 in words is "one billion, six hundred sixty-four million, four hundred sixty-six thousand, one".