15954066648 has 48 divisors (see below), whose sum is σ = 46532697120. Its totient is φ = 4908943296.

The previous prime is 15954066613. The next prime is 15954066659. The reversal of 15954066648 is 84666045951.

It is a junction number, because it is equal to n+sod(n) for n = 15954066594 and 15954066603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8521536 + ... + 8523407.

It is an arithmetic number, because the mean of its divisors is an integer number (969431190).

Almost surely, 2^15954066648 is an apocalyptic number.

15954066648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

15954066648 is an abundant number, since it is smaller than the sum of its proper divisors (30578630472).

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

15954066648 is a wasteful number, since it uses less digits than its factorization.

15954066648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17044968 (or 17044961 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The spelling of 15954066648 in words is "fifteen billion, nine hundred fifty-four million, sixty-six thousand, six hundred forty-eight".