10561055001550 has 12 divisors (see below), whose sum is σ = 19643562302976. Its totient is φ = 4224422000600.

The previous prime is 10561055001529. The next prime is 10561055001559. The reversal of 10561055001550 is 5510055016501.

It is a super-2 number, since 2×10561055001550² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10561055001559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105610549966 + ... + 105610550065.

It is an arithmetic number, because the mean of its divisors is an integer number (1636963525248).

Almost surely, 2^{10561055001550} is an apocalyptic number.

10561055001550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10561055001550 is a deficient number, since it is larger than the sum of its proper divisors (9082507301426).

10561055001550 is a wasteful number, since it uses less digits than its factorization.

10561055001550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211221100043 (or 211221100038 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 34.

The spelling of 10561055001550 in words is "ten trillion, five hundred sixty-one billion, fifty-five million, one thousand, five hundred fifty".