65499590057226 has 128 divisors (see below), whose sum is σ = 146759580850176. Its totient is φ = 19352034570240.

The previous prime is 65499590057221. The next prime is 65499590057273. The reversal of 65499590057226 is 62275009599456.

It is not an unprimeable number, because it can be changed into a prime (65499590057221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 713169780 + ... + 713261616.

It is an arithmetic number, because the mean of its divisors is an integer number (1146559225392).

Almost surely, 2^{65499590057226} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65499590057226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73379790425088).

65499590057226 is an abundant number, since it is smaller than the sum of its proper divisors (81259990792950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65499590057226 is a wasteful number, since it uses less digits than its factorization.

65499590057226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94176.

The product of its (nonzero) digits is 367416000, while the sum is 69.

The spelling of 65499590057226 in words is "sixty-five trillion, four hundred ninety-nine billion, five hundred ninety million, fifty-seven thousand, two hundred twenty-six".