1664096500 has 48 divisors (see below), whose sum is σ = 3964798656. Its totient is φ = 605124000.

The previous prime is 1664096471. The next prime is 1664096501. The reversal of 1664096500 is 56904661.

It is a super-2 number, since 2×1664096500² = 5538434322624500000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1664096500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1664096501) by changing a digit.

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, 145782 + ... + 156781.

It is an arithmetic number, because the mean of its divisors is an integer number (82599972).

Almost surely, 2^1664096500 is an apocalyptic number.

1664096500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1664096500 is an abundant number, since it is smaller than the sum of its proper divisors (2300702156).

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

1664096500 is a wasteful number, since it uses less digits than its factorization.

1664096500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302593 (or 302581 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 1664096500 is about 40793.3389170340. The cubic root of 1664096500 is about 1185.0213340412.

The spelling of 1664096500 in words is "one billion, six hundred sixty-four million, ninety-six thousand, five hundred".