64503406514 has 4 divisors (see below), whose sum is σ = 96755109774. Its totient is φ = 32251703256.

The previous prime is 64503406483. The next prime is 64503406529. The reversal of 64503406514 is 41560430546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41560430546 = 2 ⋅20780215273.

It can be written as a sum of positive squares in only one way, i.e., 52200825625 + 12302580889 = 228475^2 + 110917^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16125851627 + ... + 16125851630.

Almost surely, 2^64503406514 is an apocalyptic number.

64503406514 is a deficient number, since it is larger than the sum of its proper divisors (32251703260).

64503406514 is a wasteful number, since it uses less digits than its factorization.

64503406514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32251703259.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 64503406514 in words is "sixty-four billion, five hundred three million, four hundred six thousand, five hundred fourteen".