1061100100564 has 24 divisors (see below), whose sum is σ = 2122224749568. Its totient is φ = 454751925600.

The previous prime is 1061100100561. The next prime is 1061100100607. The reversal of 1061100100564 is 4650010011601.

It is a super-2 number, since 2×1061100100564² (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 (1061100100561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3157014 + ... + 3476914.

It is an arithmetic number, because the mean of its divisors is an integer number (88426031232).

Almost surely, 2^{1061100100564} is an apocalyptic number.

1061100100564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1061100100564 is an abundant number, since it is smaller than the sum of its proper divisors (1061124649004).

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

1061100100564 is a wasteful number, since it uses less digits than its factorization.

1061100100564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438375 (or 438373 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 1061100100564 in words is "one trillion, sixty-one billion, one hundred million, one hundred thousand, five hundred sixty-four".