15651456480 has 432 divisors, whose sum is σ = 60101561520. Its totient is φ = 3704279040.

The previous prime is 15651456439. The next prime is 15651456493. The reversal of 15651456480 is 8465415651.

15651456480 is a `hidden beast` number, since 1 + 5 + 6 + 5 + 1 + 4 + 564 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 7491276 + ... + 7493364.

It is an arithmetic number, because the mean of its divisors is an integer number (139123985).

Almost surely, 2^15651456480 is an apocalyptic number.

15651456480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15651456480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30050780760).

15651456480 is an abundant number, since it is smaller than the sum of its proper divisors (44450105040).

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

15651456480 is a wasteful number, since it uses less digits than its factorization.

15651456480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175 (or 2153 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 45.

The spelling of 15651456480 in words is "fifteen billion, six hundred fifty-one million, four hundred fifty-six thousand, four hundred eighty".