1054611135261 has 24 divisors (see below), whose sum is σ = 1612975066560. Its totient is φ = 661700221056.

The previous prime is 1054611135241. The next prime is 1054611135269. The reversal of 1054611135261 is 1625311164501.

1054611135261 is a `hidden beast` number, since 1 + 0 + 5 + 4 + 611 + 1 + 35 + 2 + 6 + 1 = 666.

It is not a de Polignac number, because 1054611135261 - 2⁷ = 1054611135133 is a prime.

It is a super-2 number, since 2×1054611135261² (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 (1054611135269) 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, 9544750 + ... + 9654608.

It is an arithmetic number, because the mean of its divisors is an integer number (67207294440).

Almost surely, 2^{1054611135261} is an apocalyptic number.

It is an amenable number.

1054611135261 is a deficient number, since it is larger than the sum of its proper divisors (558363931299).

1054611135261 is a wasteful number, since it uses less digits than its factorization.

1054611135261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172625 (or 172622 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

Adding to 1054611135261 its reverse (1625311164501), we get a palindrome (2679922299762).

The spelling of 1054611135261 in words is "one trillion, fifty-four billion, six hundred eleven million, one hundred thirty-five thousand, two hundred sixty-one".