10561251701628 has 18 divisors (see below), whose sum is σ = 26696497356984. Its totient is φ = 3520417233864.

The previous prime is 10561251701569. The next prime is 10561251701629. The reversal of 10561251701628 is 82610715216501.

10561251701628 is a `hidden beast` number, since 1 + 0 + 5 + 6 + 1 + 2 + 5 + 17 + 0 + 1 + 628 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×10561251701628² (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 (10561251701629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146684051376 + ... + 146684051447.

Almost surely, 2^{10561251701628} is an apocalyptic number.

10561251701628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

10561251701628 is an abundant number, since it is smaller than the sum of its proper divisors (16135245655356).

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

10561251701628 is a wasteful number, since it uses less digits than its factorization.

10561251701628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293368102833 (or 293368102828 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The spelling of 10561251701628 in words is "ten trillion, five hundred sixty-one billion, two hundred fifty-one million, seven hundred one thousand, six hundred twenty-eight".