16463430643625 has 64 divisors (see below), whose sum is σ = 24012888127488. Its totient is φ = 11034396979200.

The previous prime is 16463430643603. The next prime is 16463430643651. The reversal of 16463430643625 is 52634603436461.

It is not a de Polignac number, because 16463430643625 - 2¹⁸ = 16463430381481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30867209 + ... + 31396041.

It is an arithmetic number, because the mean of its divisors is an integer number (375201376992).

Almost surely, 2^{16463430643625} is an apocalyptic number.

It is an amenable number.

16463430643625 is a deficient number, since it is larger than the sum of its proper divisors (7549457483863).

16463430643625 is an equidigital number, since it uses as much as digits as its factorization.

16463430643625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529659 (or 529649 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 53.

The spelling of 16463430643625 in words is "sixteen trillion, four hundred sixty-three billion, four hundred thirty million, six hundred forty-three thousand, six hundred twenty-five".