1121685567798 has 16 divisors (see below), whose sum is σ = 2244815694576. Its totient is φ = 373654429440.

The previous prime is 1121685567757. The next prime is 1121685567833. The reversal of 1121685567798 is 8977655861211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60179863 + ... + 60198498.

It is an arithmetic number, because the mean of its divisors is an integer number (140300980911).

Almost surely, 2^{1121685567798} is an apocalyptic number.

1121685567798 is an abundant number, since it is smaller than the sum of its proper divisors (1123130126778).

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

1121685567798 is a wasteful number, since it uses less digits than its factorization.

1121685567798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120379919.

The product of its digits is 50803200, while the sum is 66.

The spelling of 1121685567798 in words is "one trillion, one hundred twenty-one billion, six hundred eighty-five million, five hundred sixty-seven thousand, seven hundred ninety-eight".