40554465418361 has 2 divisors, whose sum is σ = 40554465418362. Its totient is φ = 40554465418360.

The previous prime is 40554465418343. The next prime is 40554465418427. The reversal of 40554465418361 is 16381456445504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29437949205625 + 11116516212736 = 5425675^2 + 3334144^2 .

It is a cyclic number.

It is not a de Polignac number, because 40554465418361 - 2²⁶ = 40554398309497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40554465418297 and 40554465418306.

It is not a weakly prime, because it can be changed into another prime (40554465448361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20277232709180 + 20277232709181.

It is an arithmetic number, because the mean of its divisors is an integer number (20277232709181).

Almost surely, 2^{40554465418361} is an apocalyptic number.

It is an amenable number.

40554465418361 is a deficient number, since it is larger than the sum of its proper divisors (1).

40554465418361 is an equidigital number, since it uses as much as digits as its factorization.

40554465418361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648000, while the sum is 56.

The spelling of 40554465418361 in words is "forty trillion, five hundred fifty-four billion, four hundred sixty-five million, four hundred eighteen thousand, three hundred sixty-one".