54220001641639 has 2 divisors, whose sum is σ = 54220001641640. Its totient is φ = 54220001641638.

The previous prime is 54220001641627. The next prime is 54220001641711. The reversal of 54220001641639 is 93614610002245.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54220001641639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54220001641595 and 54220001641604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54220001641339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27110000820819 + 27110000820820.

It is an arithmetic number, because the mean of its divisors is an integer number (27110000820820).

Almost surely, 2^{54220001641639} is an apocalyptic number.

54220001641639 is a deficient number, since it is larger than the sum of its proper divisors (1).

54220001641639 is an equidigital number, since it uses as much as digits as its factorization.

54220001641639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 54220001641639 in words is "fifty-four trillion, two hundred twenty billion, one million, six hundred forty-one thousand, six hundred thirty-nine".