951358377661 has 2 divisors, whose sum is σ = 951358377662. Its totient is φ = 951358377660.

The previous prime is 951358377581. The next prime is 951358377679. The reversal of 951358377661 is 166773853159.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 565880062500 + 385478315161 = 752250^2 + 620869^2 .

It is a cyclic number.

It is not a de Polignac number, because 951358377661 - 2²³ = 951349989053 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 951358377661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (951353377661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475679188830 + 475679188831.

It is an arithmetic number, because the mean of its divisors is an integer number (475679188831).

Almost surely, 2^951358377661 is an apocalyptic number.

It is an amenable number.

951358377661 is a deficient number, since it is larger than the sum of its proper divisors (1).

951358377661 is an equidigital number, since it uses as much as digits as its factorization.

951358377661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28576800, while the sum is 61.

The spelling of 951358377661 in words is "nine hundred fifty-one billion, three hundred fifty-eight million, three hundred seventy-seven thousand, six hundred sixty-one".