15610665552 has 20 divisors (see below), whose sum is σ = 40327552800. Its totient is φ = 5203555168.

The previous prime is 15610665479. The next prime is 15610665571. The reversal of 15610665552 is 25556601651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162611052 + ... + 162611147.

It is an arithmetic number, because the mean of its divisors is an integer number (2016377640).

Almost surely, 2^15610665552 is an apocalyptic number.

15610665552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15610665552 is an abundant number, since it is smaller than the sum of its proper divisors (24716887248).

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

15610665552 is a wasteful number, since it uses less digits than its factorization.

15610665552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325222210 (or 325222204 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 15610665552 in words is "fifteen billion, six hundred ten million, six hundred sixty-five thousand, five hundred fifty-two".