40502520145 has 16 divisors (see below), whose sum is σ = 52717201488. Its totient is φ = 29752207360.

The previous prime is 40502520137. The next prime is 40502520161. The reversal of 40502520145 is 54102520504.

It can be written as a sum of positive squares in 8 ways, for example, as 1295352081 + 39207168064 = 35991^2 + 198008^2 .

It is not a de Polignac number, because 40502520145 - 2³ = 40502520137 is a prime.

It is a super-2 number, since 2×40502520145² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5807494 + ... + 5814463.

It is an arithmetic number, because the mean of its divisors is an integer number (3294825093).

Almost surely, 2^40502520145 is an apocalyptic number.

It is an amenable number.

40502520145 is a deficient number, since it is larger than the sum of its proper divisors (12214681343).

40502520145 is a wasteful number, since it uses less digits than its factorization.

40502520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11622020.

The product of its (nonzero) digits is 8000, while the sum is 28.

The spelling of 40502520145 in words is "forty billion, five hundred two million, five hundred twenty thousand, one hundred forty-five".