40245166299979 has 2 divisors, whose sum is σ = 40245166299980. Its totient is φ = 40245166299978.

The previous prime is 40245166299907. The next prime is 40245166299983. The reversal of 40245166299979 is 97999266154204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40245166299979 is a prime.

It is not a weakly prime, because it can be changed into another prime (40240166299979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20122583149989 + 20122583149990.

It is an arithmetic number, because the mean of its divisors is an integer number (20122583149990).

Almost surely, 2^{40245166299979} is an apocalyptic number.

40245166299979 is a deficient number, since it is larger than the sum of its proper divisors (1).

40245166299979 is an equidigital number, since it uses as much as digits as its factorization.

40245166299979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 529079040, while the sum is 73.

The spelling of 40245166299979 in words is "forty trillion, two hundred forty-five billion, one hundred sixty-six million, two hundred ninety-nine thousand, nine hundred seventy-nine".