63611199157 has 4 divisors (see below), whose sum is σ = 69394035456. Its totient is φ = 57828362860.

The previous prime is 63611199083. The next prime is 63611199167. The reversal of 63611199157 is 75199111636.

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 63611199157 - 2²⁷ = 63476981429 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63611199157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63611199167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891418133 + ... + 2891418154.

It is an arithmetic number, because the mean of its divisors is an integer number (17348508864).

Almost surely, 2^63611199157 is an apocalyptic number.

It is an amenable number.

63611199157 is a deficient number, since it is larger than the sum of its proper divisors (5782836299).

63611199157 is a wasteful number, since it uses less digits than its factorization.

63611199157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782836298.

The product of its digits is 306180, while the sum is 49.

The spelling of 63611199157 in words is "sixty-three billion, six hundred eleven million, one hundred ninety-nine thousand, one hundred fifty-seven".