22782770065990 has 32 divisors (see below), whose sum is σ = 45349912436256. Its totient is φ = 8171155388160.

The previous prime is 22782770065961. The next prime is 22782770065999. The reversal of 22782770065990 is 9956007728722.

It is a happy number.

It is a super-2 number, since 2×22782770065990² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22782770065999) 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, 1418595337 + ... + 1418611396.

It is an arithmetic number, because the mean of its divisors is an integer number (1417184763633).

Almost surely, 2^{22782770065990} is an apocalyptic number.

22782770065990 is a deficient number, since it is larger than the sum of its proper divisors (22567142370266).

22782770065990 is a wasteful number, since it uses less digits than its factorization.

22782770065990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837206824.

The product of its (nonzero) digits is 53343360, while the sum is 64.

The spelling of 22782770065990 in words is "twenty-two trillion, seven hundred eighty-two billion, seven hundred seventy million, sixty-five thousand, nine hundred ninety".