2645201061101 has 16 divisors (see below), whose sum is σ = 2906129404800. Its totient is φ = 2396491846848.

The previous prime is 2645201061071. The next prime is 2645201061109. The reversal of 2645201061101 is 1011601025462.

It is a cyclic number.

It is not a de Polignac number, because 2645201061101 - 2¹⁰ = 2645201060077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645201061109) 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, 1303895 + ... + 2643963.

It is an arithmetic number, because the mean of its divisors is an integer number (181633087800).

Almost surely, 2^{2645201061101} is an apocalyptic number.

It is an amenable number.

2645201061101 is a deficient number, since it is larger than the sum of its proper divisors (260928343699).

2645201061101 is a wasteful number, since it uses less digits than its factorization.

2645201061101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344628.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 2645201061101 its reverse (1011601025462), we get a palindrome (3656802086563).

The spelling of 2645201061101 in words is "two trillion, six hundred forty-five billion, two hundred one million, sixty-one thousand, one hundred one".