119659954561 has 9 divisors (see below), whose sum is σ = 139199090499. Its totient is φ = 102563599824.

The previous prime is 119659954559. The next prime is 119659954567. The reversal of 119659954561 is 165459956911.

It is a happy number.

The square root of 119659954561 is 345919.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 114146001025 + 5513953536 = 337855^2 + 74256^2 .

It is not a de Polignac number, because 119659954561 - 2¹ = 119659954559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 119659954561.

It is not an unprimeable number, because it can be changed into a prime (119659954567) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2396725 + ... + 2446141.

It is an arithmetic number, because the mean of its divisors is an integer number (15466565611).

Almost surely, 2^119659954561 is an apocalyptic number.

119659954561 is the 345919-th square number.

119659954561 is the 172960-th centered octagonal number.

It is an amenable number.

119659954561 is a deficient number, since it is larger than the sum of its proper divisors (19539135938).

119659954561 is an frugal number, since it uses more digits than its factorization.

119659954561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98848 (or 49424 counting only the distinct ones).

The product of its digits is 13122000, while the sum is 61.

The spelling of 119659954561 in words is "one hundred nineteen billion, six hundred fifty-nine million, nine hundred fifty-four thousand, five hundred sixty-one".