117545669557 has 2 divisors, whose sum is σ = 117545669558. Its totient is φ = 117545669556.

The previous prime is 117545669429. The next prime is 117545669573. The reversal of 117545669557 is 755966545711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74849299396 + 42696370161 = 273586^2 + 206631^2 .

It is a cyclic number.

It is not a de Polignac number, because 117545669557 - 2⁷ = 117545669429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117545669495 and 117545669504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117545669597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58772834778 + 58772834779.

It is an arithmetic number, because the mean of its divisors is an integer number (58772834779).

Almost surely, 2^117545669557 is an apocalyptic number.

It is an amenable number.

117545669557 is a deficient number, since it is larger than the sum of its proper divisors (1).

117545669557 is an equidigital number, since it uses as much as digits as its factorization.

117545669557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39690000, while the sum is 61.

The spelling of 117545669557 in words is "one hundred seventeen billion, five hundred forty-five million, six hundred sixty-nine thousand, five hundred fifty-seven".