6650451400 has 48 divisors (see below), whose sum is σ = 15485588100. Its totient is φ = 2656174080.

The previous prime is 6650451389. The next prime is 6650451487. The reversal of 6650451400 is 41540566.

It can be written as a sum of positive squares in 6 ways, for example, as 1508700964 + 5141750436 = 38842^2 + 71706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109896 + ... + 159304.

Almost surely, 2^6650451400 is an apocalyptic number.

It is an amenable number.

6650451400 is an abundant number, since it is smaller than the sum of its proper divisors (8835136700).

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

6650451400 is a wasteful number, since it uses less digits than its factorization.

6650451400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50098 (or 50089 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 6650451400 is about 81550.2998155126. The cubic root of 6650451400 is about 1880.5449039165.

Adding to 6650451400 its reverse (41540566), we get a palindrome (6691991966).

The spelling of 6650451400 in words is "six billion, six hundred fifty million, four hundred fifty-one thousand, four hundred".