63016652426521 has 4 divisors (see below), whose sum is σ = 65756506879872. Its totient is φ = 60276797973172.

The previous prime is 63016652426513. The next prime is 63016652426527. The reversal of 63016652426521 is 12562425661036.

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 63016652426521 - 2³ = 63016652426513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63016652426527) 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, 1369927226641 + ... + 1369927226686.

It is an arithmetic number, because the mean of its divisors is an integer number (16439126719968).

Almost surely, 2^{63016652426521} is an apocalyptic number.

It is an amenable number.

63016652426521 is a deficient number, since it is larger than the sum of its proper divisors (2739854453351).

63016652426521 is a wasteful number, since it uses less digits than its factorization.

63016652426521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739854453350.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 63016652426521 in words is "sixty-three trillion, sixteen billion, six hundred fifty-two million, four hundred twenty-six thousand, five hundred twenty-one".