54141616681 has 2 divisors, whose sum is σ = 54141616682. Its totient is φ = 54141616680.

The previous prime is 54141616667. The next prime is 54141616721. The reversal of 54141616681 is 18661614145.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51256960000 + 2884656681 = 226400^2 + 53709^2 .

It is a cyclic number.

It is not a de Polignac number, because 54141616681 - 2¹³ = 54141608489 is a prime.

It is a super-2 number, since 2×54141616681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54141616181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27070808340 + 27070808341.

It is an arithmetic number, because the mean of its divisors is an integer number (27070808341).

Almost surely, 2^54141616681 is an apocalyptic number.

It is an amenable number.

54141616681 is a deficient number, since it is larger than the sum of its proper divisors (1).

54141616681 is an equidigital number, since it uses as much as digits as its factorization.

54141616681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 43.

The spelling of 54141616681 in words is "fifty-four billion, one hundred forty-one million, six hundred sixteen thousand, six hundred eighty-one".