21160162445601 has 4 divisors (see below), whose sum is σ = 28213549927472. Its totient is φ = 14106774963732.

The previous prime is 21160162445579. The next prime is 21160162445621. The reversal of 21160162445601 is 10654426106112.

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 not a de Polignac number, because 21160162445601 - 2¹³ = 21160162437409 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 21160162445601.

It is not an unprimeable number, because it can be changed into a prime (21160162445621) 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, 3526693740931 + ... + 3526693740936.

It is an arithmetic number, because the mean of its divisors is an integer number (7053387481868).

Almost surely, 2^{21160162445601} is an apocalyptic number.

It is an amenable number.

21160162445601 is a deficient number, since it is larger than the sum of its proper divisors (7053387481871).

21160162445601 is an equidigital number, since it uses as much as digits as its factorization.

21160162445601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7053387481870.

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 21160162445601 in words is "twenty-one trillion, one hundred sixty billion, one hundred sixty-two million, four hundred forty-five thousand, six hundred one".