1121117158578 has 32 divisors (see below), whose sum is σ = 2361589364736. Its totient is φ = 354116914448.

The previous prime is 1121117158559. The next prime is 1121117158583. The reversal of 1121117158578 is 8758517111211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37948026 + ... + 37977557.

It is an arithmetic number, because the mean of its divisors is an integer number (73799667648).

Almost surely, 2^{1121117158578} is an apocalyptic number.

1121117158578 is an abundant number, since it is smaller than the sum of its proper divisors (1240472206158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121117158578 is a wasteful number, since it uses less digits than its factorization.

1121117158578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75925718.

The product of its digits is 156800, while the sum is 48.

The spelling of 1121117158578 in words is "one trillion, one hundred twenty-one billion, one hundred seventeen million, one hundred fifty-eight thousand, five hundred seventy-eight".