63461540120661 has 12 divisors (see below), whose sum is σ = 93220341420960. Its totient is φ = 41590613864040.

The previous prime is 63461540120623. The next prime is 63461540120683. The reversal of 63461540120661 is 16602104516436.

63461540120661 is a `hidden beast` number, since 6 + 3 + 4 + 615 + 4 + 0 + 1 + 20 + 6 + 6 + 1 = 666.

It is not a de Polignac number, because 63461540120661 - 2¹⁵ = 63461540087893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63461540120761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59756628585 + ... + 59756629646.

It is an arithmetic number, because the mean of its divisors is an integer number (7768361785080).

Almost surely, 2^{63461540120661} is an apocalyptic number.

It is an amenable number.

63461540120661 is a deficient number, since it is larger than the sum of its proper divisors (29758801300299).

63461540120661 is a wasteful number, since it uses less digits than its factorization.

63461540120661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119513258296 (or 119513258293 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 63461540120661 in words is "sixty-three trillion, four hundred sixty-one billion, five hundred forty million, one hundred twenty thousand, six hundred sixty-one".