40205156718245 has 8 divisors (see below), whose sum is σ = 48403341770784. Its totient is φ = 32059356235344.

The previous prime is 40205156718217. The next prime is 40205156718247. The reversal of 40205156718245 is 54281765150204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40205156718245 - 2¹⁴ = 40205156701861 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40205156718193 and 40205156718202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205156718247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13096140719 + ... + 13096143788.

It is an arithmetic number, because the mean of its divisors is an integer number (6050417721348).

Almost surely, 2^{40205156718245} is an apocalyptic number.

It is an amenable number.

40205156718245 is a deficient number, since it is larger than the sum of its proper divisors (8198185052539).

40205156718245 is a wasteful number, since it uses less digits than its factorization.

40205156718245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26192284819.

The product of its (nonzero) digits is 2688000, while the sum is 50.

The spelling of 40205156718245 in words is "forty trillion, two hundred five billion, one hundred fifty-six million, seven hundred eighteen thousand, two hundred forty-five".