13561199680484 has 6 divisors (see below), whose sum is σ = 23732099440854. Its totient is φ = 6780599840240.

The previous prime is 13561199680447. The next prime is 13561199680487. The reversal of 13561199680484 is 48408699116531.

It can be written as a sum of positive squares in only one way, i.e., 10011706000384 + 3549493680100 = 3164128^2 + 1884010^2 .

It is a super-2 number, since 2×13561199680484² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13561199680484.

It is not an unprimeable number, because it can be changed into a prime (13561199680487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1695149960057 + ... + 1695149960064.

It is an arithmetic number, because the mean of its divisors is an integer number (3955349906809).

Almost surely, 2^{13561199680484} is an apocalyptic number.

It is an amenable number.

13561199680484 is a deficient number, since it is larger than the sum of its proper divisors (10170899760370).

13561199680484 is a wasteful number, since it uses less digits than its factorization.

13561199680484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3390299920125 (or 3390299920123 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 65.

The spelling of 13561199680484 in words is "thirteen trillion, five hundred sixty-one billion, one hundred ninety-nine million, six hundred eighty thousand, four hundred eighty-four".