16250904902457 has 12 divisors (see below), whose sum is σ = 23474027016804. Its totient is φ = 10833706887840.

The previous prime is 16250904902293. The next prime is 16250904902461. The reversal of 16250904902457 is 75420940905261.

It is a happy number.

16250904902457 is a `hidden beast` number, since 1 + 6 + 2 + 509 + 0 + 4 + 90 + 2 + 45 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8961018302016 + 7289886600441 = 2993496^2 + 2699979^2 .

It is not a de Polignac number, because 16250904902457 - 2²⁸ = 16250636467001 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16250904901457) 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, 18694218 + ... + 19544195.

It is an arithmetic number, because the mean of its divisors is an integer number (1956168918067).

Almost surely, 2^{16250904902457} is an apocalyptic number.

It is an amenable number.

16250904902457 is a deficient number, since it is larger than the sum of its proper divisors (7223122114347).

16250904902457 is a wasteful number, since it uses less digits than its factorization.

16250904902457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38285640 (or 38285637 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 16250904902457 in words is "sixteen trillion, two hundred fifty billion, nine hundred four million, nine hundred two thousand, four hundred fifty-seven".