2205445958947 has 36 divisors (see below), whose sum is σ = 2820608147448. Its totient is φ = 1718128473600.

The previous prime is 2205445958929. The next prime is 2205445958981. The reversal of 2205445958947 is 7498595445022.

It is a de Polignac number, because none of the positive numbers 2^k-2205445958947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2205445953947) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26775747 + ... + 26857987.

It is an arithmetic number, because the mean of its divisors is an integer number (78350226318).

Almost surely, 2^{2205445958947} is an apocalyptic number.

2205445958947 is a deficient number, since it is larger than the sum of its proper divisors (615162188501).

2205445958947 is a wasteful number, since it uses less digits than its factorization.

2205445958947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86800 (or 86782 counting only the distinct ones).

The product of its (nonzero) digits is 145152000, while the sum is 64.

The spelling of 2205445958947 in words is "two trillion, two hundred five billion, four hundred forty-five million, nine hundred fifty-eight thousand, nine hundred forty-seven".