154160672689 has 27 divisors (see below), whose sum is σ = 165406309803. Its totient is φ = 143665985232.

The previous prime is 154160672651. The next prime is 154160672693. The reversal of 154160672689 is 986276061451.

The square root of 154160672689 is 392633.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 103314030625 + 50846642064 = 321425^2 + 225492^2 .

It is not a de Polignac number, because 154160672689 - 2⁹ = 154160672177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154160675689) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 388313839 + ... + 388314235.

Almost surely, 2^154160672689 is an apocalyptic number.

154160672689 is the 392633-rd square number.

154160672689 is the 196317-th centered octagonal number.

It is an amenable number.

154160672689 is a deficient number, since it is larger than the sum of its proper divisors (11245637114).

154160672689 is an frugal number, since it uses more digits than its factorization.

154160672689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 154160672689 in words is "one hundred fifty-four billion, one hundred sixty million, six hundred seventy-two thousand, six hundred eighty-nine".