4661640456 has 64 divisors (see below), whose sum is σ = 12839515200. Its totient is φ = 1398624000.

The previous prime is 4661640439. The next prime is 4661640551. The reversal of 4661640456 is 6540461664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60751 + ... + 114078.

It is an arithmetic number, because the mean of its divisors is an integer number (200617425).

Almost surely, 2^4661640456 is an apocalyptic number.

It is an amenable number.

4661640456 is an abundant number, since it is smaller than the sum of its proper divisors (8177874744).

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

4661640456 is a wasteful number, since it uses less digits than its factorization.

4661640456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174950 (or 174946 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The square root of 4661640456 is about 68276.2071002776. The cubic root of 4661640456 is about 1670.4991463359.

The spelling of 4661640456 in words is "four billion, six hundred sixty-one million, six hundred forty thousand, four hundred fifty-six".