1056505135544 has 16 divisors (see below), whose sum is σ = 2044848649920. Its totient is φ = 511212162240.

The previous prime is 1056505135481. The next prime is 1056505135573. The reversal of 1056505135544 is 4455315056501.

It is a super-2 number, since 2×1056505135544² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1056505135495 and 1056505135504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2130050429 + ... + 2130050924.

It is an arithmetic number, because the mean of its divisors is an integer number (127803040620).

Almost surely, 2^{1056505135544} is an apocalyptic number.

It is an amenable number.

1056505135544 is a deficient number, since it is larger than the sum of its proper divisors (988343514376).

1056505135544 is a wasteful number, since it uses less digits than its factorization.

1056505135544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4260101390 (or 4260101386 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 1056505135544 in words is "one trillion, fifty-six billion, five hundred five million, one hundred thirty-five thousand, five hundred forty-four".