10100661556 has 12 divisors (see below), whose sum is σ = 17676894340. Its totient is φ = 5050120320.

The previous prime is 10100661547. The next prime is 10100661563. The reversal of 10100661556 is 65516600101.

10100661556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2592439056 + 7508222500 = 50916^2 + 86650^2 .

It is a super-2 number, since 2×10100661556² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113980 + ... + 182188.

Almost surely, 2^10100661556 is an apocalyptic number.

It is an amenable number.

10100661556 is a deficient number, since it is larger than the sum of its proper divisors (7576232784).

10100661556 is a wasteful number, since it uses less digits than its factorization.

10100661556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105234 (or 105232 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 10100661556 in words is "ten billion, one hundred million, six hundred sixty-one thousand, five hundred fifty-six".