16251241630 has 48 divisors (see below), whose sum is σ = 33464571840. Its totient is φ = 5647477248.

The previous prime is 16251241621. The next prime is 16251241637. The reversal of 16251241630 is 3614215261.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16251241592 and 16251241601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16251241637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178710 + ... + 253849.

It is an arithmetic number, because the mean of its divisors is an integer number (697178580).

Almost surely, 2^16251241630 is an apocalyptic number.

16251241630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16251241630 is an abundant number, since it is smaller than the sum of its proper divisors (17213330210).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16251241630 is a wasteful number, since it uses less digits than its factorization.

16251241630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432613 (or 432596 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 16251241630 its reverse (3614215261), we get a palindrome (19865456891).

The spelling of 16251241630 in words is "sixteen billion, two hundred fifty-one million, two hundred forty-one thousand, six hundred thirty".