45161020385251 has 2 divisors, whose sum is σ = 45161020385252. Its totient is φ = 45161020385250.

The previous prime is 45161020385233. The next prime is 45161020385329. The reversal of 45161020385251 is 15258302016154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45161020385251 - 2¹¹ = 45161020383203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45161020385198 and 45161020385207.

It is not a weakly prime, because it can be changed into another prime (45161020388251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22580510192625 + 22580510192626.

It is an arithmetic number, because the mean of its divisors is an integer number (22580510192626).

Almost surely, 2^{45161020385251} is an apocalyptic number.

45161020385251 is a deficient number, since it is larger than the sum of its proper divisors (1).

45161020385251 is an equidigital number, since it uses as much as digits as its factorization.

45161020385251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 43.

The spelling of 45161020385251 in words is "forty-five trillion, one hundred sixty-one billion, twenty million, three hundred eighty-five thousand, two hundred fifty-one".