16940553012 has 36 divisors (see below), whose sum is σ = 44203309696. Its totient is φ = 5464694160.

The previous prime is 16940553011. The next prime is 16940553017. The reversal of 16940553012 is 21035504961.

16940553012 is a `hidden beast` number, since 1 + 6 + 94 + 0 + 553 + 0 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×16940553012³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16940553011) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 7588738 + ... + 7590969.

Almost surely, 2^16940553012 is an apocalyptic number.

16940553012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16940553012 is an abundant number, since it is smaller than the sum of its proper divisors (27262756684).

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

16940553012 is a wasteful number, since it uses less digits than its factorization.

16940553012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179748 (or 15179743 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 16940553012 in words is "sixteen billion, nine hundred forty million, five hundred fifty-three thousand, twelve".