1061542298880 has 1440 divisors, whose sum is σ = 4648994735616. Its totient is φ = 225756315648.

The previous prime is 1061542298849. The next prime is 1061542298923. The reversal of 1061542298880 is 888922451601.

1061542298880 is a `hidden beast` number, since 1 + 0 + 6 + 1 + 542 + 2 + 98 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a super-2 number, since 2×1061542298880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1196777797 + ... + 1196778683.

Almost surely, 2^{1061542298880} is an apocalyptic number.

1061542298880 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 1061542298880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2324497367808).

1061542298880 is an abundant number, since it is smaller than the sum of its proper divisors (3587452436736).

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

1061542298880 is an equidigital number, since it uses as much as digits as its factorization.

1061542298880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 54.

The spelling of 1061542298880 in words is "one trillion, sixty-one billion, five hundred forty-two million, two hundred ninety-eight thousand, eight hundred eighty".