63354099961 has 2 divisors, whose sum is σ = 63354099962. Its totient is φ = 63354099960.

The previous prime is 63354099917. The next prime is 63354099967. The reversal of 63354099961 is 16999045336.

63354099961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35554873600 + 27799226361 = 188560^2 + 166731^2 .

It is a cyclic number.

It is not a de Polignac number, because 63354099961 - 2¹¹ = 63354097913 is a prime.

It is not a weakly prime, because it can be changed into another prime (63354099967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31677049980 + 31677049981.

It is an arithmetic number, because the mean of its divisors is an integer number (31677049981).

Almost surely, 2^63354099961 is an apocalyptic number.

It is an amenable number.

63354099961 is a deficient number, since it is larger than the sum of its proper divisors (1).

63354099961 is an equidigital number, since it uses as much as digits as its factorization.

63354099961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4723920, while the sum is 55.

The spelling of 63354099961 in words is "sixty-three billion, three hundred fifty-four million, ninety-nine thousand, nine hundred sixty-one".