16256485450 has 24 divisors (see below), whose sum is σ = 32015715372. Its totient is φ = 6120088320.

The previous prime is 16256485429. The next prime is 16256485459. The reversal of 16256485450 is 5458465261.

It can be written as a sum of positive squares in 6 ways, for example, as 5606864641 + 10649620809 = 74879^2 + 103197^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16256485450.

It is not an unprimeable number, because it can be changed into a prime (16256485459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9561789 + ... + 9563488.

Almost surely, 2^16256485450 is an apocalyptic number.

16256485450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16256485450 is a deficient number, since it is larger than the sum of its proper divisors (15759229922).

16256485450 is a wasteful number, since it uses less digits than its factorization.

16256485450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19125306 (or 19125301 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 46.

The spelling of 16256485450 in words is "sixteen billion, two hundred fifty-six million, four hundred eighty-five thousand, four hundred fifty".