60643632505 has 32 divisors (see below), whose sum is σ = 75710764800. Its totient is φ = 46600108800.

The previous prime is 60643632503. The next prime is 60643632523. The reversal of 60643632505 is 50523634606.

It is not a de Polignac number, because 60643632505 - 2¹ = 60643632503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (60643632503) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3226164 + ... + 3244906.

It is an arithmetic number, because the mean of its divisors is an integer number (2365961400).

Almost surely, 2^60643632505 is an apocalyptic number.

It is an amenable number.

60643632505 is a deficient number, since it is larger than the sum of its proper divisors (15067132295).

60643632505 is a wasteful number, since it uses less digits than its factorization.

60643632505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19041.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 60643632505 in words is "sixty billion, six hundred forty-three million, six hundred thirty-two thousand, five hundred five".