180841242551 has 2 divisors, whose sum is σ = 180841242552. Its totient is φ = 180841242550.

The previous prime is 180841242523. The next prime is 180841242581. The reversal of 180841242551 is 155242148081.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180841242551 is a prime.

It is a super-2 number, since 2×180841242551² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 180841242499 and 180841242508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180841242581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90420621275 + 90420621276.

It is an arithmetic number, because the mean of its divisors is an integer number (90420621276).

Almost surely, 2^180841242551 is an apocalyptic number.

180841242551 is a deficient number, since it is larger than the sum of its proper divisors (1).

180841242551 is an equidigital number, since it uses as much as digits as its factorization.

180841242551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102400, while the sum is 41.

The spelling of 180841242551 in words is "one hundred eighty billion, eight hundred forty-one million, two hundred forty-two thousand, five hundred fifty-one".