16545602425 has 12 divisors (see below), whose sum is σ = 22381688016. Its totient is φ = 12033165200.

The previous prime is 16545602419. The next prime is 16545602467. The reversal of 16545602425 is 52420654561.

It is a happy number.

It is not a de Polignac number, because 16545602425 - 2¹⁵ = 16545569657 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30082639 + ... + 30083188.

It is an arithmetic number, because the mean of its divisors is an integer number (1865140668).

Almost surely, 2^16545602425 is an apocalyptic number.

It is an amenable number.

16545602425 is a deficient number, since it is larger than the sum of its proper divisors (5836085591).

16545602425 is a wasteful number, since it uses less digits than its factorization.

16545602425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60165848 (or 60165843 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 16545602425 in words is "sixteen billion, five hundred forty-five million, six hundred two thousand, four hundred twenty-five".