64495016770 has 16 divisors (see below), whose sum is σ = 116216010360. Its totient is φ = 25770233344.

The previous prime is 64495016767. The next prime is 64495016819. The reversal of 64495016770 is 7761059446.

It can be written as a sum of positive squares in 4 ways, for example, as 20124543321 + 44370473449 = 141861^2 + 210643^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3461917 + ... + 3480496.

Almost surely, 2^64495016770 is an apocalyptic number.

64495016770 is a deficient number, since it is larger than the sum of its proper divisors (51720993590).

64495016770 is a wasteful number, since it uses less digits than its factorization.

64495016770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6943349.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 64495016770 in words is "sixty-four billion, four hundred ninety-five million, sixteen thousand, seven hundred seventy".