91041466010225 has 24 divisors (see below), whose sum is σ = 115645702498200. Its totient is φ = 71056240640000.

The previous prime is 91041466010221. The next prime is 91041466010237. The reversal of 91041466010225 is 52201066414019.

It can be written as a sum of positive squares in 12 ways, for example, as 65251644466801 + 25789821543424 = 8077849^2 + 5078368^2 .

It is not a de Polignac number, because 91041466010225 - 2² = 91041466010221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (91041466010221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206880425 + ... + 207320025.

It is an arithmetic number, because the mean of its divisors is an integer number (4818570937425).

Almost surely, 2^{91041466010225} is an apocalyptic number.

It is an amenable number.

91041466010225 is a deficient number, since it is larger than the sum of its proper divisors (24604236487975).

91041466010225 is a wasteful number, since it uses less digits than its factorization.

91041466010225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641701 (or 641696 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 91041466010225 in words is "ninety-one trillion, forty-one billion, four hundred sixty-six million, ten thousand, two hundred twenty-five".