40266695536399 has 2 divisors, whose sum is σ = 40266695536400. Its totient is φ = 40266695536398.

The previous prime is 40266695536393. The next prime is 40266695536429. The reversal of 40266695536399 is 99363559666204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40266695536399 - 2⁹ = 40266695535887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40266695536393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20133347768199 + 20133347768200.

It is an arithmetic number, because the mean of its divisors is an integer number (20133347768200).

Almost surely, 2^{40266695536399} is an apocalyptic number.

40266695536399 is a deficient number, since it is larger than the sum of its proper divisors (1).

40266695536399 is an equidigital number, since it uses as much as digits as its factorization.

40266695536399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1700611200, while the sum is 73.

The spelling of 40266695536399 in words is "forty trillion, two hundred sixty-six billion, six hundred ninety-five million, five hundred thirty-six thousand, three hundred ninety-nine".