16545126453507 has 16 divisors (see below), whose sum is σ = 24511507359360. Its totient is φ = 11029990293000.

The previous prime is 16545126453497. The next prime is 16545126453509. The reversal of 16545126453507 is 70535462154561.

16545126453507 is a `hidden beast` number, since 1 + 6 + 5 + 4 + 5 + 126 + 4 + 5 + 3 + 507 = 666.

It is not a de Polignac number, because 16545126453507 - 2⁷ = 16545126453379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16545126453509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691132 + ... + 5793782.

It is an arithmetic number, because the mean of its divisors is an integer number (1531969209960).

Almost surely, 2^{16545126453507} is an apocalyptic number.

16545126453507 is a deficient number, since it is larger than the sum of its proper divisors (7966380905853).

16545126453507 is a wasteful number, since it uses less digits than its factorization.

16545126453507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5222751 (or 5222745 counting only the distinct ones).

The product of its (nonzero) digits is 15120000, while the sum is 54.

The spelling of 16545126453507 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred fifty-three thousand, five hundred seven".