2205742162656 has 48 divisors (see below), whose sum is σ = 5888210025600. Its totient is φ = 722785565568.

The previous prime is 2205742162639. The next prime is 2205742162667. The reversal of 2205742162656 is 6562612475022.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194710276 + ... + 194721603.

It is an arithmetic number, because the mean of its divisors is an integer number (122671042200).

Almost surely, 2^{2205742162656} is an apocalyptic number.

It is an amenable number.

2205742162656 is an abundant number, since it is smaller than the sum of its proper divisors (3682467862944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2205742162656 is a wasteful number, since it uses less digits than its factorization.

2205742162656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389431951 (or 389431943 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 48.

The spelling of 2205742162656 in words is "two trillion, two hundred five billion, seven hundred forty-two million, one hundred sixty-two thousand, six hundred fifty-six".