20240671445505 has 96 divisors (see below), whose sum is σ = 41450579089920. Its totient is φ = 8944379458560.

The previous prime is 20240671445503. The next prime is 20240671445521. The reversal of 20240671445505 is 50554417604202.

20240671445505 is a `hidden beast` number, since 2 + 0 + 2 + 40 + 67 + 1 + 4 + 45 + 505 = 666.

It is not a de Polignac number, because 20240671445505 - 2¹ = 20240671445503 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (20240671445503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5781357 + ... + 8596826.

It is an arithmetic number, because the mean of its divisors is an integer number (431776865520).

Almost surely, 2^{20240671445505} is an apocalyptic number.

It is an amenable number.

20240671445505 is an abundant number, since it is smaller than the sum of its proper divisors (21209907644415).

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

20240671445505 is a wasteful number, since it uses less digits than its factorization.

20240671445505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14378351 (or 14378348 counting only the distinct ones).

The product of its (nonzero) digits is 1344000, while the sum is 45.

The spelling of 20240671445505 in words is "twenty trillion, two hundred forty billion, six hundred seventy-one million, four hundred forty-five thousand, five hundred five".