15521152480 has 48 divisors (see below), whose sum is σ = 36948686544. Its totient is φ = 6161059840.

The previous prime is 15521152469. The next prime is 15521152481. The reversal of 15521152480 is 8425112551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15521152481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349297 + ... + 391216.

It is an arithmetic number, because the mean of its divisors is an integer number (769764303).

Almost surely, 2^15521152480 is an apocalyptic number.

15521152480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15521152480 is an abundant number, since it is smaller than the sum of its proper divisors (21427534064).

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

15521152480 is a wasteful number, since it uses less digits than its factorization.

15521152480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740659 (or 740651 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 34.

The spelling of 15521152480 in words is "fifteen billion, five hundred twenty-one million, one hundred fifty-two thousand, four hundred eighty".