40071332145 has 64 divisors (see below), whose sum is σ = 74663285760. Its totient is φ = 18171875328.

The previous prime is 40071332129. The next prime is 40071332183. The reversal of 40071332145 is 54123317004.

It is a happy number.

It is not a de Polignac number, because 40071332145 - 2⁴ = 40071332129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27211 + ... + 284399.

It is an arithmetic number, because the mean of its divisors is an integer number (1166613840).

Almost surely, 2^40071332145 is an apocalyptic number.

It is an amenable number.

40071332145 is a deficient number, since it is larger than the sum of its proper divisors (34591953615).

40071332145 is a wasteful number, since it uses less digits than its factorization.

40071332145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257274.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 40071332145 its reverse (54123317004), we get a palindrome (94194649149).

The spelling of 40071332145 in words is "forty billion, seventy-one million, three hundred thirty-two thousand, one hundred forty-five".