15454405683816 has 64 divisors (see below), whose sum is σ = 42943631613120. Its totient is φ = 4594791851520.

The previous prime is 15454405683793. The next prime is 15454405683881. The reversal of 15454405683816 is 61838650445451.

It is a self number, because there is not a number n which added to its sum of digits gives 15454405683816.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 552244645 + ... + 552272628.

It is an arithmetic number, because the mean of its divisors is an integer number (670994243955).

Almost surely, 2^{15454405683816} is an apocalyptic number.

It is an amenable number.

15454405683816 is an abundant number, since it is smaller than the sum of its proper divisors (27489225929304).

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

15454405683816 is a wasteful number, since it uses less digits than its factorization.

15454405683816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104517346 (or 1104517342 counting only the distinct ones).

The product of its (nonzero) digits is 55296000, while the sum is 60.

The spelling of 15454405683816 in words is "fifteen trillion, four hundred fifty-four billion, four hundred five million, six hundred eighty-three thousand, eight hundred sixteen".