1551433152216 has 32 divisors (see below), whose sum is σ = 4012327119600. Its totient is φ = 499311818880.

The previous prime is 1551433152193. The next prime is 1551433152253. The reversal of 1551433152216 is 6122513341551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1114534615 + ... + 1114536006.

Almost surely, 2^{1551433152216} is an apocalyptic number.

It is an amenable number.

1551433152216 is an abundant number, since it is smaller than the sum of its proper divisors (2460893967384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1551433152216 is a wasteful number, since it uses less digits than its factorization.

1551433152216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2229070659 (or 2229070655 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

Adding to 1551433152216 its reverse (6122513341551), we get a palindrome (7673946493767).

The spelling of 1551433152216 in words is "one trillion, five hundred fifty-one billion, four hundred thirty-three million, one hundred fifty-two thousand, two hundred sixteen".