16252416431 has 4 divisors (see below), whose sum is σ = 16252830792. Its totient is φ = 16252002072.

The previous prime is 16252416421. The next prime is 16252416457. The reversal of 16252416431 is 13461425261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16252416431 is a prime.

It is a super-2 number, since 2×16252416431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16252416391 and 16252416400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16252416421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141380 + ... + 229113.

It is an arithmetic number, because the mean of its divisors is an integer number (4063207698).

Almost surely, 2^16252416431 is an apocalyptic number.

16252416431 is a deficient number, since it is larger than the sum of its proper divisors (414361).

16252416431 is an equidigital number, since it uses as much as digits as its factorization.

16252416431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414360.

The product of its digits is 34560, while the sum is 35.

The spelling of 16252416431 in words is "sixteen billion, two hundred fifty-two million, four hundred sixteen thousand, four hundred thirty-one".