16442619012 has 36 divisors (see below), whose sum is σ = 41634146736. Its totient is φ = 5471528880.

The previous prime is 16442618989. The next prime is 16442619031. The reversal of 16442619012 is 21091624461.

16442619012 is a `hidden beast` number, since 1 + 644 + 2 + 6 + 1 + 9 + 0 + 1 + 2 = 666.

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

It is a super-3 number, since 3×16442619012³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367914 + ... + 410177.

It is an arithmetic number, because the mean of its divisors is an integer number (1156504076).

Almost surely, 2^16442619012 is an apocalyptic number.

16442619012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16442619012 is an abundant number, since it is smaller than the sum of its proper divisors (25191527724).

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

16442619012 is a wasteful number, since it uses less digits than its factorization.

16442619012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778688 (or 778683 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 16442619012 in words is "sixteen billion, four hundred forty-two million, six hundred nineteen thousand, twelve".