40266353203613 has 2 divisors, whose sum is σ = 40266353203614. Its totient is φ = 40266353203612.

The previous prime is 40266353203579. The next prime is 40266353203631. The reversal of 40266353203613 is 31630235366204.

Together with next prime (40266353203631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40187954323609 + 78398880004 = 6339397^2 + 279998^2 .

It is a cyclic number.

It is not a de Polignac number, because 40266353203613 - 2²⁴ = 40266336426397 is a prime.

It is a super-2 number, since 2×40266353203613² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40266353203313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20133176601806 + 20133176601807.

It is an arithmetic number, because the mean of its divisors is an integer number (20133176601807).

Almost surely, 2^{40266353203613} is an apocalyptic number.

It is an amenable number.

40266353203613 is a deficient number, since it is larger than the sum of its proper divisors (1).

40266353203613 is an equidigital number, since it uses as much as digits as its factorization.

40266353203613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1399680, while the sum is 44.

Adding to 40266353203613 its reverse (31630235366204), we get a palindrome (71896588569817).

The spelling of 40266353203613 in words is "forty trillion, two hundred sixty-six billion, three hundred fifty-three million, two hundred three thousand, six hundred thirteen".