40064044545 has 96 divisors (see below), whose sum is σ = 80070681600. Its totient is φ = 18152709120.

The previous prime is 40064044519. The next prime is 40064044567. The reversal of 40064044545 is 54544046004.

40064044545 is a `hidden beast` number, since 4 + 0 + 0 + 640 + 4 + 4 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 40064044545 - 2¹² = 40064040449 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 42757317 + ... + 42758253.

It is an arithmetic number, because the mean of its divisors is an integer number (834069600).

Almost surely, 2^40064044545 is an apocalyptic number.

40064044545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40064044545 is a deficient number, since it is larger than the sum of its proper divisors (40006637055).

40064044545 is a wasteful number, since it uses less digits than its factorization.

40064044545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

The spelling of 40064044545 in words is "forty billion, sixty-four million, forty-four thousand, five hundred forty-five".