22152074777 has 8 divisors (see below), whose sum is σ = 25318003200. Its totient is φ = 18986482944.

The previous prime is 22152074741. The next prime is 22152074797. The reversal of 22152074777 is 77747025122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22152074777 - 2¹⁴ = 22152058393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22152074797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77624 + ... + 224342.

It is an arithmetic number, because the mean of its divisors is an integer number (3164750400).

Almost surely, 2^22152074777 is an apocalyptic number.

It is an amenable number.

22152074777 is a deficient number, since it is larger than the sum of its proper divisors (3165928423).

22152074777 is a wasteful number, since it uses less digits than its factorization.

22152074777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168295.

The product of its (nonzero) digits is 384160, while the sum is 44.

Adding to 22152074777 its reverse (77747025122), we get a palindrome (99899099899).

The spelling of 22152074777 in words is "twenty-two billion, one hundred fifty-two million, seventy-four thousand, seven hundred seventy-seven".