16121555110 has 16 divisors (see below), whose sum is σ = 29024856432. Its totient is φ = 6447276000.

The previous prime is 16121555083. The next prime is 16121555171. The reversal of 16121555110 is 1155512161.

16121555110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×16121555110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117216 + ... + 214435.

It is an arithmetic number, because the mean of its divisors is an integer number (1814053527).

Almost surely, 2^16121555110 is an apocalyptic number.

16121555110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16121555110 is a deficient number, since it is larger than the sum of its proper divisors (12903301322).

16121555110 is a wasteful number, since it uses less digits than its factorization.

16121555110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336519.

The product of its (nonzero) digits is 1500, while the sum is 28.

The spelling of 16121555110 in words is "sixteen billion, one hundred twenty-one million, five hundred fifty-five thousand, one hundred ten".