64001100 has 36 divisors (see below), whose sum is σ = 185177384. Its totient is φ = 17066880.

The previous prime is 64001099. The next prime is 64001137. The reversal of 64001100 is 110046.

It is a super-2 number, since 2×64001100² = 8192281602420000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106369 + ... + 106968.

Almost surely, 2^64001100 is an apocalyptic number.

64001100 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64001100 is an abundant number, since it is smaller than the sum of its proper divisors (121176284).

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

64001100 is a wasteful number, since it uses less digits than its factorization.

64001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213354 (or 213347 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 64001100 is about 8000.0687497046. The cubic root of 64001100 is about 400.0022916535.

Adding to 64001100 its reverse (110046), we get a palindrome (64111146).

The spelling of 64001100 in words is "sixty-four million, one thousand, one hundred".