65354555545356 has 144 divisors (see below), whose sum is σ = 191227749850368. Its totient is φ = 16877079494400.

The previous prime is 65354555545351. The next prime is 65354555545397.

65354555545356 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (65354555545351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26472766 + ... + 28836026.

It is an arithmetic number, because the mean of its divisors is an integer number (1327970485072).

Almost surely, 2^{65354555545356} is an apocalyptic number.

65354555545356 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65354555545356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95613874925184).

65354555545356 is an abundant number, since it is smaller than the sum of its proper divisors (125873194305012).

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

65354555545356 is a wasteful number, since it uses less digits than its factorization.

65354555545356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2363632 (or 2363457 counting only the distinct ones).

The product of its digits is 2025000000, while the sum is 66.

The spelling of 65354555545356 in words is "sixty-five trillion, three hundred fifty-four billion, five hundred fifty-five million, five hundred forty-five thousand, three hundred fifty-six".