6430607251656 has 64 divisors (see below), whose sum is σ = 18425808912000. Its totient is φ = 1832051824128.

The previous prime is 6430607251643. The next prime is 6430607251657. The reversal of 6430607251656 is 6561527060346.

It is a junction number, because it is equal to n+sod(n) for n = 6430607251599 and 6430607251608.

It is not an unprimeable number, because it can be changed into a prime (6430607251657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54780085 + ... + 54897348.

It is an arithmetic number, because the mean of its divisors is an integer number (287903264250).

Almost surely, 2^{6430607251656} is an apocalyptic number.

It is an amenable number.

6430607251656 is an abundant number, since it is smaller than the sum of its proper divisors (11995201660344).

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

6430607251656 is a wasteful number, since it uses less digits than its factorization.

6430607251656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109677798 (or 109677794 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 51.

The spelling of 6430607251656 in words is "six trillion, four hundred thirty billion, six hundred seven million, two hundred fifty-one thousand, six hundred fifty-six".