13400352556 has 6 divisors (see below), whose sum is σ = 23450616980. Its totient is φ = 6700176276.

The previous prime is 13400352533. The next prime is 13400352569. The reversal of 13400352556 is 65525300431.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1675044066 + ... + 1675044073.

Almost surely, 2^13400352556 is an apocalyptic number.

It is an amenable number.

13400352556 is a deficient number, since it is larger than the sum of its proper divisors (10050264424).

13400352556 is a wasteful number, since it uses less digits than its factorization.

13400352556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350088143 (or 3350088141 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 13400352556 its reverse (65525300431), we get a palindrome (78925652987).

The spelling of 13400352556 in words is "thirteen billion, four hundred million, three hundred fifty-two thousand, five hundred fifty-six".