54081666629 has 2 divisors, whose sum is σ = 54081666630. Its totient is φ = 54081666628.

The previous prime is 54081666623. The next prime is 54081666643. The reversal of 54081666629 is 92666618045.

54081666629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52647302500 + 1434364129 = 229450^2 + 37873^2 .

It is a cyclic number.

It is not a de Polignac number, because 54081666629 - 2¹² = 54081662533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54081666623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27040833314 + 27040833315.

It is an arithmetic number, because the mean of its divisors is an integer number (27040833315).

Almost surely, 2^54081666629 is an apocalyptic number.

It is an amenable number.

54081666629 is a deficient number, since it is larger than the sum of its proper divisors (1).

54081666629 is an equidigital number, since it uses as much as digits as its factorization.

54081666629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 54081666629 in words is "fifty-four billion, eighty-one million, six hundred sixty-six thousand, six hundred twenty-nine".