40020170056105 has 32 divisors (see below), whose sum is σ = 50663803276800. Its totient is φ = 30263940145152.

The previous prime is 40020170056091. The next prime is 40020170056117. The reversal of 40020170056105 is 50165007102004.

It is a de Polignac number, because none of the positive numbers 2^k-40020170056105 is a prime.

It is a super-2 number, since 2×40020170056105² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82886469 + ... + 83367901.

It is an arithmetic number, because the mean of its divisors is an integer number (1583243852400).

Almost surely, 2^{40020170056105} is an apocalyptic number.

It is an amenable number.

40020170056105 is a deficient number, since it is larger than the sum of its proper divisors (10643633220695).

40020170056105 is a wasteful number, since it uses less digits than its factorization.

40020170056105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483393.

The product of its (nonzero) digits is 8400, while the sum is 31.

Adding to 40020170056105 its reverse (50165007102004), we get a palindrome (90185177158109).

The spelling of 40020170056105 in words is "forty trillion, twenty billion, one hundred seventy million, fifty-six thousand, one hundred five".