1111160421553 has 18 divisors (see below), whose sum is σ = 1399651544934. Its totient is φ = 879159887424.

The previous prime is 1111160421541. The next prime is 1111160421557. The reversal of 1111160421553 is 3551240611111.

It can be written as a sum of positive squares in 3 ways, for example, as 54061830144 + 1057098591409 = 232512^2 + 1028153^2 .

It is not a de Polignac number, because 1111160421553 - 2⁵ = 1111160421521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111160421557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 67082676 + ... + 67099237.

It is an arithmetic number, because the mean of its divisors is an integer number (77758419163).

Almost surely, 2^{1111160421553} is an apocalyptic number.

1111160421553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1111160421553 is a deficient number, since it is larger than the sum of its proper divisors (288491123381).

1111160421553 is a wasteful number, since it uses less digits than its factorization.

1111160421553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134181953 (or 134181933 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 1111160421553 in words is "one trillion, one hundred eleven billion, one hundred sixty million, four hundred twenty-one thousand, five hundred fifty-three".