1061131532445 has 12 divisors (see below), whose sum is σ = 1839294656316. Its totient is φ = 565936817280.

The previous prime is 1061131532441. The next prime is 1061131532537. The reversal of 1061131532445 is 5442351311601.

1061131532445 is a `hidden beast` number, since 1 + 0 + 6 + 11 + 315 + 324 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 631061827236 + 430069705209 = 794394^2 + 655797^2 .

It is not a de Polignac number, because 1061131532445 - 2² = 1061131532441 is a prime.

It is a super-2 number, since 2×1061131532445² (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 (1061131532441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11790350316 + ... + 11790350405.

It is an arithmetic number, because the mean of its divisors is an integer number (153274554693).

Almost surely, 2^{1061131532445} is an apocalyptic number.

1061131532445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1061131532445 is a deficient number, since it is larger than the sum of its proper divisors (778163123871).

1061131532445 is a wasteful number, since it uses less digits than its factorization.

1061131532445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23580700732 (or 23580700729 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 1061131532445 in words is "one trillion, sixty-one billion, one hundred thirty-one million, five hundred thirty-two thousand, four hundred forty-five".