15990466560 has 384 divisors, whose sum is σ = 55094981760. Its totient is φ = 3944742912.

The previous prime is 15990466559. The next prime is 15990466561. The reversal of 15990466560 is 6566409951.

It is an interprime number because it is at equal distance from previous prime (15990466559) and next prime (15990466561).

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (15990466561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34989852 + ... + 34990308.

It is an arithmetic number, because the mean of its divisors is an integer number (143476515).

Almost surely, 2^15990466560 is an apocalyptic number.

15990466560 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 15990466560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27547490880).

15990466560 is an abundant number, since it is smaller than the sum of its proper divisors (39104515200).

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

15990466560 is a wasteful number, since it uses less digits than its factorization.

15990466560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 15990466560 in words is "fifteen billion, nine hundred ninety million, four hundred sixty-six thousand, five hundred sixty".