1655241102161 has 8 divisors (see below), whose sum is σ = 1656168491880. Its totient is φ = 1654313891328.

The previous prime is 1655241102157. The next prime is 1655241102173. The reversal of 1655241102161 is 1612011425561.

It can be written as a sum of positive squares in 4 ways, for example, as 1908029761 + 1653333072400 = 43681^2 + 1285820^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1655241102161 - 2² = 1655241102157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655241102761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21237515 + ... + 21315311.

It is an arithmetic number, because the mean of its divisors is an integer number (207021061485).

Almost surely, 2^{1655241102161} is an apocalyptic number.

It is an amenable number.

1655241102161 is a deficient number, since it is larger than the sum of its proper divisors (927389719).

1655241102161 is an equidigital number, since it uses as much as digits as its factorization.

1655241102161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89443.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 1655241102161 in words is "one trillion, six hundred fifty-five billion, two hundred forty-one million, one hundred two thousand, one hundred sixty-one".