161054202601 has 4 divisors (see below), whose sum is σ = 169530739600. Its totient is φ = 152577665604.

The previous prime is 161054202583. The next prime is 161054202643. The reversal of 161054202601 is 106202450161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161054202601 - 2¹⁵ = 161054169833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161054202601.

It is not an unprimeable number, because it can be changed into a prime (161054202401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4238268471 + ... + 4238268508.

It is an arithmetic number, because the mean of its divisors is an integer number (42382684900).

Almost surely, 2^161054202601 is an apocalyptic number.

It is an amenable number.

161054202601 is a deficient number, since it is larger than the sum of its proper divisors (8476536999).

161054202601 is an equidigital number, since it uses as much as digits as its factorization.

161054202601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8476536998.

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 161054202601 its reverse (106202450161), we get a palindrome (267256652762).

The spelling of 161054202601 in words is "one hundred sixty-one billion, fifty-four million, two hundred two thousand, six hundred one".