16610726551 has 2 divisors, whose sum is σ = 16610726552. Its totient is φ = 16610726550.

The previous prime is 16610726543. The next prime is 16610726557. The reversal of 16610726551 is 15562701661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16610726551 - 2³ = 16610726543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16610726557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305363275 + 8305363276.

It is an arithmetic number, because the mean of its divisors is an integer number (8305363276).

Almost surely, 2^16610726551 is an apocalyptic number.

16610726551 is a deficient number, since it is larger than the sum of its proper divisors (1).

16610726551 is an equidigital number, since it uses as much as digits as its factorization.

16610726551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 16610726551 in words is "sixteen billion, six hundred ten million, seven hundred twenty-six thousand, five hundred fifty-one".