16556236354 has 16 divisors (see below), whose sum is σ = 28917632448. Its totient is φ = 6961651632.

The previous prime is 16556236337. The next prime is 16556236381. The reversal of 16556236354 is 45363265561.

16556236354 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 2×16556236354² (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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11155752 + ... + 11157235.

It is an arithmetic number, because the mean of its divisors is an integer number (1807352028).

Almost surely, 2^16556236354 is an apocalyptic number.

16556236354 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16556236354 is a deficient number, since it is larger than the sum of its proper divisors (12361396094).

16556236354 is a wasteful number, since it uses less digits than its factorization.

16556236354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22313049.

The product of its digits is 1944000, while the sum is 46.

The spelling of 16556236354 in words is "sixteen billion, five hundred fifty-six million, two hundred thirty-six thousand, three hundred fifty-four".