13315635044 has 6 divisors (see below), whose sum is σ = 23302361334. Its totient is φ = 6657817520.

The previous prime is 13315635031. The next prime is 13315635059. The reversal of 13315635044 is 44053651331.

It can be written as a sum of positive squares in only one way, i.e., 9753932644 + 3561702400 = 98762^2 + 59680^2 .

It is a super-2 number, since 2×13315635044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13315634995 and 13315635013.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664454377 + ... + 1664454384.

It is an arithmetic number, because the mean of its divisors is an integer number (3883726889).

Almost surely, 2^13315635044 is an apocalyptic number.

It is an amenable number.

13315635044 is a deficient number, since it is larger than the sum of its proper divisors (9986726290).

13315635044 is a wasteful number, since it uses less digits than its factorization.

13315635044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328908765 (or 3328908763 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 13315635044 in words is "thirteen billion, three hundred fifteen million, six hundred thirty-five thousand, forty-four".