64455343554 has 64 divisors (see below), whose sum is σ = 150811499520. Its totient is φ = 17980522560.

The previous prime is 64455343541. The next prime is 64455343559. The reversal of 64455343554 is 45534355446.

It is a super-3 number, since 3×64455343554³ (a number of 33 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64455343559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6115269 + ... + 6125799.

It is an arithmetic number, because the mean of its divisors is an integer number (2356429680).

Almost surely, 2^64455343554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64455343554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75405749760).

64455343554 is an abundant number, since it is smaller than the sum of its proper divisors (86356155966).

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

64455343554 is a wasteful number, since it uses less digits than its factorization.

64455343554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13975.

The product of its digits is 8640000, while the sum is 48.

The spelling of 64455343554 in words is "sixty-four billion, four hundred fifty-five million, three hundred forty-three thousand, five hundred fifty-four".