40163470556257 has 2 divisors, whose sum is σ = 40163470556258. Its totient is φ = 40163470556256.

The previous prime is 40163470556171. The next prime is 40163470556291. The reversal of 40163470556257 is 75265507436104.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39976838780176 + 186631776081 = 6322724^2 + 432009^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40163470556257 is a prime.

It is a super-2 number, since 2×40163470556257² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40163470556198 and 40163470556207.

It is not a weakly prime, because it can be changed into another prime (40163470556857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20081735278128 + 20081735278129.

It is an arithmetic number, because the mean of its divisors is an integer number (20081735278129).

Almost surely, 2^{40163470556257} is an apocalyptic number.

It is an amenable number.

40163470556257 is a deficient number, since it is larger than the sum of its proper divisors (1).

40163470556257 is an equidigital number, since it uses as much as digits as its factorization.

40163470556257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168000, while the sum is 55.

The spelling of 40163470556257 in words is "forty trillion, one hundred sixty-three billion, four hundred seventy million, five hundred fifty-six thousand, two hundred fifty-seven".