64553344335546 has 32 divisors (see below), whose sum is σ = 140844277683648. Its totient is φ = 19561533757440.

The previous prime is 64553344335541. The next prime is 64553344335553.

64553344335546 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 64553344335546.

It is not an unprimeable number, because it can be changed into a prime (64553344335541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13935780 + ... + 17980896.

It is an arithmetic number, because the mean of its divisors is an integer number (4401383677614).

Almost surely, 2^{64553344335546} is an apocalyptic number.

64553344335546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64553344335546 is an abundant number, since it is smaller than the sum of its proper divisors (76290933348102).

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

64553344335546 is a wasteful number, since it uses less digits than its factorization.

64553344335546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286926.

The product of its digits is 466560000, while the sum is 60.

The spelling of 64553344335546 in words is "sixty-four trillion, five hundred fifty-three billion, three hundred forty-four million, three hundred thirty-five thousand, five hundred forty-six".