16166246425 has 48 divisors (see below), whose sum is σ = 24151132800. Its totient is φ = 10486540800.

The previous prime is 16166246377. The next prime is 16166246431. The reversal of 16166246425 is 52464266161.

It is not a de Polignac number, because 16166246425 - 2²¹ = 16164149273 is a prime.

It is a super-2 number, since 2×16166246425² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2527131 + ... + 2533519.

It is an arithmetic number, because the mean of its divisors is an integer number (503148600).

Almost surely, 2^16166246425 is an apocalyptic number.

It is an amenable number.

16166246425 is a deficient number, since it is larger than the sum of its proper divisors (7984886375).

16166246425 is a wasteful number, since it uses less digits than its factorization.

16166246425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7186 (or 7181 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The spelling of 16166246425 in words is "sixteen billion, one hundred sixty-six million, two hundred forty-six thousand, four hundred twenty-five".