1011440434555 has 16 divisors (see below), whose sum is σ = 1219377771360. Its totient is φ = 805393017088.

The previous prime is 1011440434549. The next prime is 1011440434573. The reversal of 1011440434555 is 5554340441101.

It is a cyclic number.

It is not a de Polignac number, because 1011440434555 - 2²⁷ = 1011306216827 is a prime.

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, 758484 + ... + 1611886.

It is an arithmetic number, because the mean of its divisors is an integer number (76211110710).

Almost surely, 2^{1011440434555} is an apocalyptic number.

1011440434555 is a deficient number, since it is larger than the sum of its proper divisors (207937336805).

1011440434555 is an equidigital number, since it uses as much as digits as its factorization.

1011440434555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854510.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 1011440434555 its reverse (5554340441101), we get a palindrome (6565780875656).

The spelling of 1011440434555 in words is "one trillion, eleven billion, four hundred forty million, four hundred thirty-four thousand, five hundred fifty-five".