6451430655 has 32 divisors (see below), whose sum is σ = 10839780864. Its totient is φ = 3270174336.

The previous prime is 6451430599. The next prime is 6451430693. The reversal of 6451430655 is 5560341546.

It is not a de Polignac number, because 6451430655 - 2⁷ = 6451430527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5389 + ... + 113718.

It is an arithmetic number, because the mean of its divisors is an integer number (338743152).

Almost surely, 2^6451430655 is an apocalyptic number.

6451430655 is a deficient number, since it is larger than the sum of its proper divisors (4388350209).

6451430655 is a wasteful number, since it uses less digits than its factorization.

6451430655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119295.

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 6451430655 is about 80320.7983961813. The cubic root of 6451430655 is about 1861.5956030121.

The spelling of 6451430655 in words is "six billion, four hundred fifty-one million, four hundred thirty thousand, six hundred fifty-five".