1061204840520 has 256 divisors, whose sum is σ = 3549330938880. Its totient is φ = 251639731200.

The previous prime is 1061204840513. The next prime is 1061204840537. The reversal of 1061204840520 is 250484021601.

It is a happy number.

It is a super-2 number, since 2×1061204840520² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23133847 + ... + 23179673.

It is an arithmetic number, because the mean of its divisors is an integer number (13864573980).

Almost surely, 2^{1061204840520} is an apocalyptic number.

1061204840520 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 1061204840520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774665469440).

1061204840520 is an abundant number, since it is smaller than the sum of its proper divisors (2488126098360).

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

1061204840520 is a wasteful number, since it uses less digits than its factorization.

1061204840520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46236 (or 46232 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The spelling of 1061204840520 in words is "one trillion, sixty-one billion, two hundred four million, eight hundred forty thousand, five hundred twenty".