16440654870 has 24 divisors (see below), whose sum is σ = 42745702896. Its totient is φ = 4384174608.

The previous prime is 16440654869. The next prime is 16440654877. The reversal of 16440654870 is 7845604461.

16440654870 is a `hidden beast` number, since 1 + 64 + 40 + 6 + 548 + 7 + 0 = 666.

It is a super-3 number, since 3×16440654870³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16440654877) 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, 91336882 + ... + 91337061.

It is an arithmetic number, because the mean of its divisors is an integer number (1781070954).

Almost surely, 2^16440654870 is an apocalyptic number.

16440654870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16440654870 is an abundant number, since it is smaller than the sum of its proper divisors (26305048026).

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

16440654870 is a wasteful number, since it uses less digits than its factorization.

16440654870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182673956 (or 182673953 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 16440654870 in words is "sixteen billion, four hundred forty million, six hundred fifty-four thousand, eight hundred seventy".