2153428816161 has 16 divisors (see below), whose sum is σ = 3281436572544. Its totient is φ = 1230522789504.

The previous prime is 2153428816129. The next prime is 2153428816163. The reversal of 2153428816161 is 1616188243512.

It is a happy number.

It is not a de Polignac number, because 2153428816161 - 2⁵ = 2153428816129 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2153428816161.

It is not an unprimeable number, because it can be changed into a prime (2153428816163) 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, 4935661 + ... + 5354213.

It is an arithmetic number, because the mean of its divisors is an integer number (205089785784).

Almost surely, 2^{2153428816161} is an apocalyptic number.

2153428816161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2153428816161 is a deficient number, since it is larger than the sum of its proper divisors (1128007756383).

2153428816161 is a wasteful number, since it uses less digits than its factorization.

2153428816161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663560.

The product of its digits is 552960, while the sum is 48.

The spelling of 2153428816161 in words is "two trillion, one hundred fifty-three billion, four hundred twenty-eight million, eight hundred sixteen thousand, one hundred sixty-one".