1061156060520 has 96 divisors (see below), whose sum is σ = 3213502437600. Its totient is φ = 280329960832.

The previous prime is 1061156060509. The next prime is 1061156060567. The reversal of 1061156060520 is 250606511601.

It is a super-2 number, since 2×1061156060520² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 987691 + ... + 1760069.

It is an arithmetic number, because the mean of its divisors is an integer number (33473983725).

Almost surely, 2^{1061156060520} is an apocalyptic number.

1061156060520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1061156060520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606751218800).

1061156060520 is an abundant number, since it is smaller than the sum of its proper divisors (2152346377080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1061156060520 is a wasteful number, since it uses less digits than its factorization.

1061156060520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772607 (or 772496 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 1061156060520 in words is "one trillion, sixty-one billion, one hundred fifty-six million, sixty thousand, five hundred twenty".