6650496400 has 30 divisors (see below), whose sum is σ = 15977818562. Its totient is φ = 2660198400.

The previous prime is 6650496397. The next prime is 6650496403. The reversal of 6650496400 is 46940566.

It is an interprime number because it is at equal distance from previous prime (6650496397) and next prime (6650496403).

It can be written as a sum of positive squares in 3 ways, for example, as 436642816 + 6213853584 = 20896^2 + 78828^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6650496403) 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 5 ways as a sum of consecutive naturals, for example, 8312721 + ... + 8313520.

Almost surely, 2^6650496400 is an apocalyptic number.

It is an amenable number.

6650496400 is an abundant number, since it is smaller than the sum of its proper divisors (9327322162).

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

6650496400 is a wasteful number, since it uses less digits than its factorization.

6650496400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16626259 (or 16626248 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 6650496400 is about 81550.5757183847. The cubic root of 6650496400 is about 1880.5491454497.

The spelling of 6650496400 in words is "six billion, six hundred fifty million, four hundred ninety-six thousand, four hundred".