16655056515 has 16 divisors (see below), whose sum is σ = 29608989600. Its totient is φ = 8882696736.

The previous prime is 16655056501. The next prime is 16655056541. The reversal of 16655056515 is 51565055661.

16655056515 is a `hidden beast` number, since 16 + 65 + 5 + 0 + 565 + 15 = 666.

It is not a de Polignac number, because 16655056515 - 2⁷ = 16655056387 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61685260 + ... + 61685529.

It is an arithmetic number, because the mean of its divisors is an integer number (1850561850).

Almost surely, 2^16655056515 is an apocalyptic number.

16655056515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16655056515 is a deficient number, since it is larger than the sum of its proper divisors (12953933085).

16655056515 is a wasteful number, since it uses less digits than its factorization.

16655056515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123370803 (or 123370797 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 16655056515 in words is "sixteen billion, six hundred fifty-five million, fifty-six thousand, five hundred fifteen".