64542211224546 has 32 divisors (see below), whose sum is σ = 141218291723328. Its totient is φ = 19502840023040.

The previous prime is 64542211224493. The next prime is 64542211224559.

64542211224546 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64542211224546² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64542211224495 and 64542211224504.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385121591 + ... + 1385168186.

It is an arithmetic number, because the mean of its divisors is an integer number (4413071616354).

Almost surely, 2^{64542211224546} is an apocalyptic number.

64542211224546 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64542211224546 is an abundant number, since it is smaller than the sum of its proper divisors (76676080498782).

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

64542211224546 is a wasteful number, since it uses less digits than its factorization.

64542211224546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770290146.

The product of its digits is 3686400, while the sum is 48.

It can be divided in two parts, 6454221 and 1224546, that added together give a palindrome (7678767).

The spelling of 64542211224546 in words is "sixty-four trillion, five hundred forty-two billion, two hundred eleven million, two hundred twenty-four thousand, five hundred forty-six".