16556355186132 has 48 divisors (see below), whose sum is σ = 38946887747712. Its totient is φ = 5473840963200.

The previous prime is 16556355186061. The next prime is 16556355186139. The reversal of 16556355186132 is 23168155365561.

It is a super-2 number, since 2×16556355186132² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16556355186139) 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, 5812983 + ... + 8179454.

It is an arithmetic number, because the mean of its divisors is an integer number (811393494744).

Almost surely, 2^{16556355186132} is an apocalyptic number.

16556355186132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16556355186132 is an abundant number, since it is smaller than the sum of its proper divisors (22390532561580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16556355186132 is a wasteful number, since it uses less digits than its factorization.

16556355186132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13993248 (or 13993246 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 57.

The spelling of 16556355186132 in words is "sixteen trillion, five hundred fifty-six billion, three hundred fifty-five million, one hundred eighty-six thousand, one hundred thirty-two".