16111430725 has 24 divisors (see below), whose sum is σ = 22039729992. Its totient is φ = 11607475200.

The previous prime is 16111430707. The next prime is 16111430743. The reversal of 16111430725 is 52703411161.

It is an interprime number because it is at equal distance from previous prime (16111430707) and next prime (16111430743).

It can be written as a sum of positive squares in 12 ways, for example, as 14449482436 + 1661948289 = 120206^2 + 40767^2 .

It is not a de Polignac number, because 16111430725 - 2⁷ = 16111430597 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 591232 + ... + 617881.

It is an arithmetic number, because the mean of its divisors is an integer number (918322083).

Almost surely, 2^16111430725 is an apocalyptic number.

It is an amenable number.

16111430725 is a deficient number, since it is larger than the sum of its proper divisors (5928299267).

16111430725 is a wasteful number, since it uses less digits than its factorization.

16111430725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209177 (or 1209172 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 16111430725 its reverse (52703411161), we get a palindrome (68814841886).

The spelling of 16111430725 in words is "sixteen billion, one hundred eleven million, four hundred thirty thousand, seven hundred twenty-five".