1121515764796 has 72 divisors (see below), whose sum is σ = 2299332601440. Its totient is φ = 468873893376.

The previous prime is 1121515764781. The next prime is 1121515764797. The reversal of 1121515764796 is 6974675151211.

It is a super-2 number, since 2×1121515764796² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121515764797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41870160 + ... + 41896936.

It is an arithmetic number, because the mean of its divisors is an integer number (31935175020).

Almost surely, 2^{1121515764796} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121515764796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149666300720).

1121515764796 is an abundant number, since it is smaller than the sum of its proper divisors (1177816836644).

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

1121515764796 is a wasteful number, since it uses less digits than its factorization.

1121515764796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27683 (or 27638 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 55.

The spelling of 1121515764796 in words is "one trillion, one hundred twenty-one billion, five hundred fifteen million, seven hundred sixty-four thousand, seven hundred ninety-six".