13154662216 has 8 divisors (see below), whose sum is σ = 24664991670. Its totient is φ = 6577331104.

The previous prime is 13154662153. The next prime is 13154662223. The reversal of 13154662216 is 61226645131.

It can be written as a sum of positive squares in only one way, i.e., 10434622500 + 2720039716 = 102150^2 + 52154^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 822166381 + ... + 822166396.

Almost surely, 2^13154662216 is an apocalyptic number.

It is an amenable number.

13154662216 is a deficient number, since it is larger than the sum of its proper divisors (11510329454).

13154662216 is a wasteful number, since it uses less digits than its factorization.

13154662216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644332783 (or 1644332779 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The spelling of 13154662216 in words is "thirteen billion, one hundred fifty-four million, six hundred sixty-two thousand, two hundred sixteen".