16573136454 has 48 divisors (see below), whose sum is σ = 41992634112. Its totient is φ = 4625059824.

The previous prime is 16573136431. The next prime is 16573136501. The reversal of 16573136454 is 45463137561.

16573136454 is a `hidden beast` number, since 1 + 6 + 573 + 1 + 36 + 45 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1524034 + ... + 1534869.

It is an arithmetic number, because the mean of its divisors is an integer number (874846544).

Almost surely, 2^16573136454 is an apocalyptic number.

16573136454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

16573136454 is an abundant number, since it is smaller than the sum of its proper divisors (25419497658).

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

16573136454 is a wasteful number, since it uses less digits than its factorization.

16573136454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058961 (or 3058958 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The spelling of 16573136454 in words is "sixteen billion, five hundred seventy-three million, one hundred thirty-six thousand, four hundred fifty-four".