20770043366 has 16 divisors (see below), whose sum is σ = 31669898400. Its totient is φ = 10214203968.

The previous prime is 20770043317. The next prime is 20770043389. The reversal of 20770043366 is 66334007702.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145721 + ... + 250548.

It is an arithmetic number, because the mean of its divisors is an integer number (1979368650).

Almost surely, 2^20770043366 is an apocalyptic number.

20770043366 is a deficient number, since it is larger than the sum of its proper divisors (10899855034).

20770043366 is a wasteful number, since it uses less digits than its factorization.

20770043366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396703.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 20770043366 in words is "twenty billion, seven hundred seventy million, forty-three thousand, three hundred sixty-six".