154046646221 has 16 divisors (see below), whose sum is σ = 167769288960. Its totient is φ = 140595886080.

The previous prime is 154046646179. The next prime is 154046646253. The reversal of 154046646221 is 122646640451.

It is not a de Polignac number, because 154046646221 - 2¹⁸ = 154046384077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154046636221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 768560 + ... + 948038.

It is an arithmetic number, because the mean of its divisors is an integer number (10485580560).

Almost surely, 2^154046646221 is an apocalyptic number.

It is an amenable number.

154046646221 is a deficient number, since it is larger than the sum of its proper divisors (13722642739).

154046646221 is a wasteful number, since it uses less digits than its factorization.

154046646221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180236.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 154046646221 in words is "one hundred fifty-four billion, forty-six million, six hundred forty-six thousand, two hundred twenty-one".