11551201516 has 6 divisors (see below), whose sum is σ = 20214602660. Its totient is φ = 5775600756.

The previous prime is 11551201511. The next prime is 11551201537. The reversal of 11551201516 is 61510215511.

It is not an unprimeable number, because it can be changed into a prime (11551201511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443900186 + ... + 1443900193.

Almost surely, 2^11551201516 is an apocalyptic number.

It is an amenable number.

11551201516 is a deficient number, since it is larger than the sum of its proper divisors (8663401144).

11551201516 is a wasteful number, since it uses less digits than its factorization.

11551201516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887800383 (or 2887800381 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 28.

The spelling of 11551201516 in words is "eleven billion, five hundred fifty-one million, two hundred one thousand, five hundred sixteen".