22053177778 has 4 divisors (see below), whose sum is σ = 33079766670. Its totient is φ = 11026588888.

The previous prime is 22053177749. The next prime is 22053177779. The reversal of 22053177778 is 87777135022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12436041289 + 9617136489 = 111517^2 + 98067^2 .

It is not an unprimeable number, because it can be changed into a prime (22053177779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5513294443 + ... + 5513294446.

Almost surely, 2^22053177778 is an apocalyptic number.

22053177778 is a deficient number, since it is larger than the sum of its proper divisors (11026588892).

22053177778 is a wasteful number, since it uses less digits than its factorization.

22053177778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026588891.

The product of its (nonzero) digits is 1152480, while the sum is 49.

The spelling of 22053177778 in words is "twenty-two billion, fifty-three million, one hundred seventy-seven thousand, seven hundred seventy-eight".