6406650432 has 504 divisors, whose sum is σ = 24241963200. Its totient is φ = 1598994432.

The previous prime is 6406650409. The next prime is 6406650461. The reversal of 6406650432 is 2340566046.

6406650432 is a `hidden beast` number, since 64 + 0 + 66 + 504 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6970869 + ... + 6971787.

Almost surely, 2^6406650432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6406650432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12120981600).

6406650432 is an abundant number, since it is smaller than the sum of its proper divisors (17835312768).

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

6406650432 is a wasteful number, since it uses less digits than its factorization.

6406650432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 6406650432 is about 80041.5544076950. The cubic root of 6406650432 is about 1857.2784060477.

The spelling of 6406650432 in words is "six billion, four hundred six million, six hundred fifty thousand, four hundred thirty-two".