16626531340 has 12 divisors (see below), whose sum is σ = 34915715856. Its totient is φ = 6650612528.

The previous prime is 16626531331. The next prime is 16626531349. The reversal of 16626531340 is 4313562661.

16626531340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (16626531331) and next prime (16626531349).

It is a self number, because there is not a number n which added to its sum of digits gives 16626531340.

It is not an unprimeable number, because it can be changed into a prime (16626531349) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 415663264 + ... + 415663303.

It is an arithmetic number, because the mean of its divisors is an integer number (2909642988).

Almost surely, 2^16626531340 is an apocalyptic number.

16626531340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16626531340 is an abundant number, since it is smaller than the sum of its proper divisors (18289184516).

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

16626531340 is a wasteful number, since it uses less digits than its factorization.

16626531340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 831326576 (or 831326574 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 16626531340 in words is "sixteen billion, six hundred twenty-six million, five hundred thirty-one thousand, three hundred forty".