31623466255541 has 2 divisors, whose sum is σ = 31623466255542. Its totient is φ = 31623466255540.

The previous prime is 31623466255517. The next prime is 31623466255553. The reversal of 31623466255541 is 14555266432613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26108267640625 + 5515198614916 = 5109625^2 + 2348446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31623466255541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31623466215541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15811733127770 + 15811733127771.

It is an arithmetic number, because the mean of its divisors is an integer number (15811733127771).

Almost surely, 2^{31623466255541} is an apocalyptic number.

It is an amenable number.

31623466255541 is a deficient number, since it is larger than the sum of its proper divisors (1).

31623466255541 is an equidigital number, since it uses as much as digits as its factorization.

31623466255541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552000, while the sum is 53.

The spelling of 31623466255541 in words is "thirty-one trillion, six hundred twenty-three billion, four hundred sixty-six million, two hundred fifty-five thousand, five hundred forty-one".