16510145425 has 24 divisors (see below), whose sum is σ = 21696325632. Its totient is φ = 12420000000.

The previous prime is 16510145423. The next prime is 16510145429. The reversal of 16510145425 is 52454101561.

It is not a de Polignac number, because 16510145425 - 2¹ = 16510145423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16510145423) 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, 472300 + ... + 506050.

It is an arithmetic number, because the mean of its divisors is an integer number (904013568).

Almost surely, 2^16510145425 is an apocalyptic number.

It is an amenable number.

16510145425 is a deficient number, since it is larger than the sum of its proper divisors (5186180207).

16510145425 is a wasteful number, since it uses less digits than its factorization.

16510145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34929 (or 34924 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 34.

Adding to 16510145425 its reverse (52454101561), we get a palindrome (68964246986).

The spelling of 16510145425 in words is "sixteen billion, five hundred ten million, one hundred forty-five thousand, four hundred twenty-five".