16540012454 has 16 divisors (see below), whose sum is σ = 28391781408. Its totient is φ = 7079208192.

The previous prime is 16540012451. The next prime is 16540012477. The reversal of 16540012454 is 45421004561.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16540012454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16540012451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769739 + ... + 790934.

It is an arithmetic number, because the mean of its divisors is an integer number (1774486338).

Almost surely, 2^16540012454 is an apocalyptic number.

16540012454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16540012454 is a deficient number, since it is larger than the sum of its proper divisors (11851768954).

16540012454 is a wasteful number, since it uses less digits than its factorization.

16540012454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561439.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 16540012454 in words is "sixteen billion, five hundred forty million, twelve thousand, four hundred fifty-four".