1551108966450 has 24 divisors (see below), whose sum is σ = 3846750237168. Its totient is φ = 413629057680.

The previous prime is 1551108966403. The next prime is 1551108966457. The reversal of 1551108966450 is 546698011551.

It is a junction number, because it is equal to n+sod(n) for n = 1551108966393 and 1551108966402.

It is not an unprimeable number, because it can be changed into a prime (1551108966457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5170363072 + ... + 5170363371.

It is an arithmetic number, because the mean of its divisors is an integer number (160281259882).

Almost surely, 2^{1551108966450} is an apocalyptic number.

1551108966450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1551108966450 is an abundant number, since it is smaller than the sum of its proper divisors (2295641270718).

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

1551108966450 is a wasteful number, since it uses less digits than its factorization.

1551108966450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10340726458 (or 10340726453 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 1551108966450 in words is "one trillion, five hundred fifty-one billion, one hundred eight million, nine hundred sixty-six thousand, four hundred fifty".