63642665330 has 16 divisors (see below), whose sum is σ = 117350866584. Its totient is φ = 24836161920.

The previous prime is 63642665329. The next prime is 63642665341. The reversal of 63642665330 is 3356624636.

It can be written as a sum of positive squares in 4 ways, for example, as 22568752441 + 41073912889 = 150229^2 + 202667^2 .

It is a super-3 number, since 3×63642665330³ (a number of 33 digits) contains 333 as substring.

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, 77612597 + ... + 77613416.

Almost surely, 2^63642665330 is an apocalyptic number.

63642665330 is a deficient number, since it is larger than the sum of its proper divisors (53708201254).

63642665330 is a wasteful number, since it uses less digits than its factorization.

63642665330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155226061.

The product of its (nonzero) digits is 1399680, while the sum is 44.

The spelling of 63642665330 in words is "sixty-three billion, six hundred forty-two million, six hundred sixty-five thousand, three hundred thirty".