936158492452661 has 2 divisors, whose sum is σ = 936158492452662. Its totient is φ = 936158492452660.

The previous prime is 936158492452657. The next prime is 936158492452717. The reversal of 936158492452661 is 166254294851639.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 754484486630161 + 181674005822500 = 27467881^2 + 13478650^2 .

It is a cyclic number.

It is not a de Polignac number, because 936158492452661 - 2² = 936158492452657 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (936158492452861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 468079246226330 + 468079246226331.

It is an arithmetic number, because the mean of its divisors is an integer number (468079246226331).

Almost surely, 2^{936158492452661} is an apocalyptic number.

It is an amenable number.

936158492452661 is a deficient number, since it is larger than the sum of its proper divisors (1).

936158492452661 is an equidigital number, since it uses as much as digits as its factorization.

936158492452661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 671846400, while the sum is 71.

The spelling of 936158492452661 in words is "nine hundred thirty-six trillion, one hundred fifty-eight billion, four hundred ninety-two million, four hundred fifty-two thousand, six hundred sixty-one".