63221671601 has 4 divisors (see below), whose sum is σ = 68969096304. Its totient is φ = 57474246900.

The previous prime is 63221671577. The next prime is 63221671661. The reversal of 63221671601 is 10617612236.

63221671601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63221671601 - 2⁶ = 63221671537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63221671661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873712335 + ... + 2873712356.

It is an arithmetic number, because the mean of its divisors is an integer number (17242274076).

Almost surely, 2^63221671601 is an apocalyptic number.

It is an amenable number.

63221671601 is a deficient number, since it is larger than the sum of its proper divisors (5747424703).

63221671601 is a wasteful number, since it uses less digits than its factorization.

63221671601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5747424702.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 63221671601 in words is "sixty-three billion, two hundred twenty-one million, six hundred seventy-one thousand, six hundred one".