1168042655138 has 4 divisors (see below), whose sum is σ = 1752063982710. Its totient is φ = 584021327568.

The previous prime is 1168042655053. The next prime is 1168042655149. The reversal of 1168042655138 is 8315562408611.

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

It can be written as a sum of positive squares in only one way, i.e., 1167335467489 + 707187649 = 1080433^2 + 26593^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 292010663783 + ... + 292010663786.

Almost surely, 2^{1168042655138} is an apocalyptic number.

1168042655138 is a deficient number, since it is larger than the sum of its proper divisors (584021327572).

1168042655138 is an equidigital number, since it uses as much as digits as its factorization.

1168042655138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584021327571.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 1168042655138 in words is "one trillion, one hundred sixty-eight billion, forty-two million, six hundred fifty-five thousand, one hundred thirty-eight".