16555046487 has 16 divisors (see below), whose sum is σ = 25259397120. Its totient is φ = 9447779232.

The previous prime is 16555046429. The next prime is 16555046491. The reversal of 16555046487 is 78464055561.

It is a happy number.

It is not a de Polignac number, because 16555046487 - 2⁶ = 16555046423 is a prime.

It is a super-4 number, since 4×16555046487⁴ (a number of 42 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16555046987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493687 + ... + 526152.

It is an arithmetic number, because the mean of its divisors is an integer number (1578712320).

Almost surely, 2^16555046487 is an apocalyptic number.

16555046487 is a deficient number, since it is larger than the sum of its proper divisors (8704350633).

16555046487 is a wasteful number, since it uses less digits than its factorization.

16555046487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020622.

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 16555046487 in words is "sixteen billion, five hundred fifty-five million, forty-six thousand, four hundred eighty-seven".