16425660635 has 8 divisors (see below), whose sum is σ = 19712227920. Its totient is φ = 13139571744.

The previous prime is 16425660631. The next prime is 16425660673. The reversal of 16425660635 is 53606652461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16425660635 - 2² = 16425660631 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16425660631) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 39137 + ... + 185426.

It is an arithmetic number, because the mean of its divisors is an integer number (2464028490).

Almost surely, 2^16425660635 is an apocalyptic number.

16425660635 is a deficient number, since it is larger than the sum of its proper divisors (3286567285).

16425660635 is a wasteful number, since it uses less digits than its factorization.

16425660635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239197.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 16425660635 in words is "sixteen billion, four hundred twenty-five million, six hundred sixty thousand, six hundred thirty-five".