16545126451720 has 32 divisors (see below), whose sum is σ = 37228202665920. Its totient is φ = 6617754020800.

The previous prime is 16545126451699. The next prime is 16545126451723. The reversal of 16545126451720 is 2715462154561.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (16545126451723) 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 7 ways as a sum of consecutive naturals, for example, 8362606 + ... + 10150045.

It is an arithmetic number, because the mean of its divisors is an integer number (1163381333310).

Almost surely, 2^{16545126451720} is an apocalyptic number.

16545126451720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16545126451720 is an abundant number, since it is smaller than the sum of its proper divisors (20683076214200).

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

16545126451720 is a wasteful number, since it uses less digits than its factorization.

16545126451720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18535005 (or 18535001 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 16545126451720 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred fifty-one thousand, seven hundred twenty".