16055500978 has 32 divisors (see below), whose sum is σ = 27988856640. Its totient is φ = 6826498560.

The previous prime is 16055500963. The next prime is 16055500987. The reversal of 16055500978 is 87900555061.

It is a super-2 number, since 2×16055500978² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70723 + ... + 192646.

It is an arithmetic number, because the mean of its divisors is an integer number (874651770).

Almost surely, 2^16055500978 is an apocalyptic number.

16055500978 is a deficient number, since it is larger than the sum of its proper divisors (11933355662).

16055500978 is a wasteful number, since it uses less digits than its factorization.

16055500978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263562.

The product of its (nonzero) digits is 378000, while the sum is 46.

The spelling of 16055500978 in words is "sixteen billion, fifty-five million, five hundred thousand, nine hundred seventy-eight".