13156554446 has 32 divisors (see below), whose sum is σ = 23847720960. Its totient is φ = 5317780896.

The previous prime is 13156554431. The next prime is 13156554457. The reversal of 13156554446 is 64445565131.

It is a junction number, because it is equal to n+sod(n) for n = 13156554397 and 13156554406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51581 + ... + 170216.

It is an arithmetic number, because the mean of its divisors is an integer number (745241280).

Almost surely, 2^13156554446 is an apocalyptic number.

13156554446 is a deficient number, since it is larger than the sum of its proper divisors (10691166514).

13156554446 is a wasteful number, since it uses less digits than its factorization.

13156554446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222048.

The product of its digits is 864000, while the sum is 44.

The spelling of 13156554446 in words is "thirteen billion, one hundred fifty-six million, five hundred fifty-four thousand, four hundred forty-six".