1166258025442 has 8 divisors (see below), whose sum is σ = 1749404746332. Its totient is φ = 583123110000.

The previous prime is 1166258025431. The next prime is 1166258025469. The reversal of 1166258025442 is 2445208526611.

It can be written as a sum of positive squares in 2 ways, for example, as 1163099697841 + 3158327601 = 1078471^2 + 56199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1166258025392 and 1166258025401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2700109 + ... + 3102112.

Almost surely, 2^{1166258025442} is an apocalyptic number.

1166258025442 is a deficient number, since it is larger than the sum of its proper divisors (583146720890).

1166258025442 is a wasteful number, since it uses less digits than its factorization.

1166258025442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902724.

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 1166258025442 in words is "one trillion, one hundred sixty-six billion, two hundred fifty-eight million, twenty-five thousand, four hundred forty-two".