154773821121 has 16 divisors (see below), whose sum is σ = 207459720000. Its totient is φ = 102635366400.

The previous prime is 154773821107. The next prime is 154773821141. The reversal of 154773821121 is 121128377451.

It is not a de Polignac number, because 154773821121 - 2⁶ = 154773821057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (154773821101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9399946 + ... + 9416396.

It is an arithmetic number, because the mean of its divisors is an integer number (12966232500).

Almost surely, 2^154773821121 is an apocalyptic number.

It is an amenable number.

154773821121 is a deficient number, since it is larger than the sum of its proper divisors (52685898879).

154773821121 is a wasteful number, since it uses less digits than its factorization.

154773821121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32896.

The product of its digits is 94080, while the sum is 42.

The spelling of 154773821121 in words is "one hundred fifty-four billion, seven hundred seventy-three million, eight hundred twenty-one thousand, one hundred twenty-one".