40205642558115 has 16 divisors (see below), whose sum is σ = 64388208457728. Its totient is φ = 21423282576096.

The previous prime is 40205642558101. The next prime is 40205642558117. The reversal of 40205642558115 is 51185524650204.

It is not a de Polignac number, because 40205642558115 - 2¹¹ = 40205642556067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40205642558117) 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, 1232907417 + ... + 1232940026.

It is an arithmetic number, because the mean of its divisors is an integer number (4024263028608).

Almost surely, 2^{40205642558115} is an apocalyptic number.

40205642558115 is a deficient number, since it is larger than the sum of its proper divisors (24182565899613).

40205642558115 is a wasteful number, since it uses less digits than its factorization.

40205642558115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2465848538.

The product of its (nonzero) digits is 1920000, while the sum is 48.

The spelling of 40205642558115 in words is "forty trillion, two hundred five billion, six hundred forty-two million, five hundred fifty-eight thousand, one hundred fifteen".