119963705581 has 4 divisors (see below), whose sum is σ = 123205967932. Its totient is φ = 116721443232.

The previous prime is 119963705573. The next prime is 119963705611. The reversal of 119963705581 is 185507369911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41232957481 + 78730748100 = 203059^2 + 280590^2 .

It is a cyclic number.

It is not a de Polignac number, because 119963705581 - 2³ = 119963705573 is a prime.

It is a super-2 number, since 2×119963705581² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119963705501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1621131120 + ... + 1621131193.

It is an arithmetic number, because the mean of its divisors is an integer number (30801491983).

Almost surely, 2^119963705581 is an apocalyptic number.

It is an amenable number.

119963705581 is a deficient number, since it is larger than the sum of its proper divisors (3242262351).

119963705581 is an equidigital number, since it uses as much as digits as its factorization.

119963705581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242262350.

The product of its (nonzero) digits is 2041200, while the sum is 55.

The spelling of 119963705581 in words is "one hundred nineteen billion, nine hundred sixty-three million, seven hundred five thousand, five hundred eighty-one".