154125621805 has 16 divisors (see below), whose sum is σ = 188835292800. Its totient is φ = 120732841152.

The previous prime is 154125621791. The next prime is 154125621817. The reversal of 154125621805 is 508126521451.

154125621805 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 154125621805 - 2²³ = 154117233197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1321530 + ... + 1433419.

It is an arithmetic number, because the mean of its divisors is an integer number (11802205800).

Almost surely, 2^154125621805 is an apocalyptic number.

It is an amenable number.

154125621805 is a deficient number, since it is larger than the sum of its proper divisors (34709670995).

154125621805 is a wasteful number, since it uses less digits than its factorization.

154125621805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755188.

The product of its (nonzero) digits is 96000, while the sum is 40.

The spelling of 154125621805 in words is "one hundred fifty-four billion, one hundred twenty-five million, six hundred twenty-one thousand, eight hundred five".