63301661540 has 48 divisors (see below), whose sum is σ = 143265129840. Its totient is φ = 23355617280.

The previous prime is 63301661497. The next prime is 63301661587. The reversal of 63301661540 is 4516610336.

It can be written as a sum of positive squares in 8 ways, for example, as 31139543296 + 32162118244 = 176464^2 + 179338^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63301661540.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264416 + ... + 443304.

It is an arithmetic number, because the mean of its divisors is an integer number (2984690205).

Almost surely, 2^63301661540 is an apocalyptic number.

It is an amenable number.

63301661540 is an abundant number, since it is smaller than the sum of its proper divisors (79963468300).

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

63301661540 is a wasteful number, since it uses less digits than its factorization.

63301661540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180272 (or 180270 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 63301661540 in words is "sixty-three billion, three hundred one million, six hundred sixty-one thousand, five hundred forty".