16155510425 has 6 divisors (see below), whose sum is σ = 20032832958. Its totient is φ = 12924408320.

The previous prime is 16155510401. The next prime is 16155510439. The reversal of 16155510425 is 52401555161.

16155510425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2321986969 + 13833523456 = 48187^2 + 117616^2 .

It is not a de Polignac number, because 16155510425 - 2¹² = 16155506329 is a prime.

It is a super-2 number, since 2×16155510425² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 323110184 + ... + 323110233.

It is an arithmetic number, because the mean of its divisors is an integer number (3338805493).

Almost surely, 2^16155510425 is an apocalyptic number.

It is an amenable number.

16155510425 is a deficient number, since it is larger than the sum of its proper divisors (3877322533).

16155510425 is an equidigital number, since it uses as much as digits as its factorization.

16155510425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646220427 (or 646220422 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 35.

The spelling of 16155510425 in words is "sixteen billion, one hundred fifty-five million, five hundred ten thousand, four hundred twenty-five".