64555455546 has 64 divisors (see below), whose sum is σ = 155600040960. Its totient is φ = 19758712320.

The previous prime is 64555455493. The next prime is 64555455571.

64555455546 is a `hidden beast` number, since 6 + 4 + 5 + 5 + 545 + 55 + 46 = 666.

64555455546 is nontrivially palindromic in base 10.

64555455546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×64555455546³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 64555455492 and 64555455501.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 819946 + ... + 895221.

It is an arithmetic number, because the mean of its divisors is an integer number (2431250640).

Almost surely, 2^64555455546 is an apocalyptic number.

64555455546 is an abundant number, since it is smaller than the sum of its proper divisors (91044585414).

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

64555455546 is a wasteful number, since it uses less digits than its factorization.

64555455546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715236 (or 1715230 counting only the distinct ones).

The product of its digits is 36000000, while the sum is 54.

The spelling of 64555455546 in words is "sixty-four billion, five hundred fifty-five million, four hundred fifty-five thousand, five hundred forty-six".