64531435466 has 4 divisors (see below), whose sum is σ = 96797153202. Its totient is φ = 32265717732.

The previous prime is 64531435459. The next prime is 64531435519. The reversal of 64531435466 is 66453413546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 64222203241 + 309232225 = 253421^2 + 17585^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 64531435466.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16132858865 + ... + 16132858868.

Almost surely, 2^64531435466 is an apocalyptic number.

64531435466 is a deficient number, since it is larger than the sum of its proper divisors (32265717736).

64531435466 is a wasteful number, since it uses less digits than its factorization.

64531435466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32265717735.

The product of its digits is 3110400, while the sum is 47.

The spelling of 64531435466 in words is "sixty-four billion, five hundred thirty-one million, four hundred thirty-five thousand, four hundred sixty-six".