49660806551 has 2 divisors, whose sum is σ = 49660806552. Its totient is φ = 49660806550.

The previous prime is 49660806541. The next prime is 49660806553. The reversal of 49660806551 is 15560806694.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49660806551 - 2²⁶ = 49593697687 is a prime.

Together with 49660806553, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49660806551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49660806553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24830403275 + 24830403276.

It is an arithmetic number, because the mean of its divisors is an integer number (24830403276).

Almost surely, 2^49660806551 is an apocalyptic number.

49660806551 is a deficient number, since it is larger than the sum of its proper divisors (1).

49660806551 is an equidigital number, since it uses as much as digits as its factorization.

49660806551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 49660806551 in words is "forty-nine billion, six hundred sixty million, eight hundred six thousand, five hundred fifty-one".