40201823666633 has 2 divisors, whose sum is σ = 40201823666634. Its totient is φ = 40201823666632.

The previous prime is 40201823666623. The next prime is 40201823666639. The reversal of 40201823666633 is 33666632810204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38662628613184 + 1539195053449 = 6217928^2 + 1240643^2 .

It is a cyclic number.

It is not a de Polignac number, because 40201823666633 - 2⁴ = 40201823666617 is a prime.

It is a super-2 number, since 2×40201823666633² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40201823666639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20100911833316 + 20100911833317.

It is an arithmetic number, because the mean of its divisors is an integer number (20100911833317).

Almost surely, 2^{40201823666633} is an apocalyptic number.

It is an amenable number.

40201823666633 is a deficient number, since it is larger than the sum of its proper divisors (1).

40201823666633 is an equidigital number, since it uses as much as digits as its factorization.

40201823666633 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 50.

The spelling of 40201823666633 in words is "forty trillion, two hundred one billion, eight hundred twenty-three million, six hundred sixty-six thousand, six hundred thirty-three".