2153124642556 has 12 divisors (see below), whose sum is σ = 3781377265680. Its totient is φ = 1072731138080.

The previous prime is 2153124642553. The next prime is 2153124642589. The reversal of 2153124642556 is 6552464213512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153124642551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957794536 + ... + 957796783.

It is an arithmetic number, because the mean of its divisors is an integer number (315114772140).

Almost surely, 2^{2153124642556} is an apocalyptic number.

It is an amenable number.

2153124642556 is a deficient number, since it is larger than the sum of its proper divisors (1628252623124).

2153124642556 is a wasteful number, since it uses less digits than its factorization.

2153124642556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915591604 (or 1915591602 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 46.

The spelling of 2153124642556 in words is "two trillion, one hundred fifty-three billion, one hundred twenty-four million, six hundred forty-two thousand, five hundred fifty-six".