15522455648 has 48 divisors (see below), whose sum is σ = 36444038400. Its totient is φ = 6363240576.

The previous prime is 15522455647. The next prime is 15522455651. The reversal of 15522455648 is 84655422551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15522455647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1501298 + ... + 1511601.

It is an arithmetic number, because the mean of its divisors is an integer number (759250800).

Almost surely, 2^15522455648 is an apocalyptic number.

It is an amenable number.

15522455648 is an abundant number, since it is smaller than the sum of its proper divisors (20921582752).

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

15522455648 is a wasteful number, since it uses less digits than its factorization.

15522455648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012939 (or 3012931 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 47.

The spelling of 15522455648 in words is "fifteen billion, five hundred twenty-two million, four hundred fifty-five thousand, six hundred forty-eight".