105415504661 has 2 divisors, whose sum is σ = 105415504662. Its totient is φ = 105415504660.

The previous prime is 105415504651. The next prime is 105415504669. The reversal of 105415504661 is 166405514501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67197600625 + 38217904036 = 259225^2 + 195494^2 .

It is a cyclic number.

It is not a de Polignac number, because 105415504661 - 2¹⁰ = 105415503637 is a prime.

It is a super-2 number, since 2×105415504661² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105415504669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52707752330 + 52707752331.

It is an arithmetic number, because the mean of its divisors is an integer number (52707752331).

Almost surely, 2^105415504661 is an apocalyptic number.

It is an amenable number.

105415504661 is a deficient number, since it is larger than the sum of its proper divisors (1).

105415504661 is an equidigital number, since it uses as much as digits as its factorization.

105415504661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 105415504661 in words is "one hundred five billion, four hundred fifteen million, five hundred four thousand, six hundred sixty-one".