64544055434 has 16 divisors (see below), whose sum is σ = 97983768960. Its totient is φ = 31883390880.

The previous prime is 64544055427. The next prime is 64544055467. The reversal of 64544055434 is 43455044546.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71837 + ... + 366399.

It is an arithmetic number, because the mean of its divisors is an integer number (6123985560).

Almost surely, 2^64544055434 is an apocalyptic number.

64544055434 is a deficient number, since it is larger than the sum of its proper divisors (33439713526).

64544055434 is a wasteful number, since it uses less digits than its factorization.

64544055434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295885.

The product of its (nonzero) digits is 2304000, while the sum is 44.

The spelling of 64544055434 in words is "sixty-four billion, five hundred forty-four million, fifty-five thousand, four hundred thirty-four".