63640203406530 has 32 divisors (see below), whose sum is σ = 155986200693504. Its totient is φ = 16609641739776.

The previous prime is 63640203406519. The next prime is 63640203406541. The reversal of 63640203406530 is 3560430204636.

It is an interprime number because it is at equal distance from previous prime (63640203406519) and next prime (63640203406541).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22567446607 + ... + 22567449426.

It is an arithmetic number, because the mean of its divisors is an integer number (4874568771672).

Almost surely, 2^{63640203406530} is an apocalyptic number.

63640203406530 is an abundant number, since it is smaller than the sum of its proper divisors (92345997286974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63640203406530 is a wasteful number, since it uses less digits than its factorization.

63640203406530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45134896090.

The product of its (nonzero) digits is 933120, while the sum is 42.

The spelling of 63640203406530 in words is "sixty-three trillion, six hundred forty billion, two hundred three million, four hundred six thousand, five hundred thirty".