16610253225 has 24 divisors (see below), whose sum is σ = 27466015872. Its totient is φ = 8857598400.

The previous prime is 16610253217. The next prime is 16610253281. The reversal of 16610253225 is 52235201661.

It is not a de Polignac number, because 16610253225 - 2³ = 16610253217 is a prime.

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, 955360 + ... + 972590.

It is an arithmetic number, because the mean of its divisors is an integer number (1144417328).

Almost surely, 2^16610253225 is an apocalyptic number.

16610253225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16610253225 is a deficient number, since it is larger than the sum of its proper divisors (10855762647).

16610253225 is a wasteful number, since it uses less digits than its factorization.

16610253225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30097 (or 30092 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 16610253225 its reverse (52235201661), we get a palindrome (68845454886).

The spelling of 16610253225 in words is "sixteen billion, six hundred ten million, two hundred fifty-three thousand, two hundred twenty-five".