5145455515551 has 16 divisors (see below), whose sum is σ = 7388710744800. Its totient is φ = 3166278007680.

The previous prime is 5145455515549. The next prime is 5145455515589. The reversal of 5145455515551 is 1555155545415.

It is not a de Polignac number, because 5145455515551 - 2¹ = 5145455515549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5145455515494 and 5145455515503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5145455505551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2449776 + ... + 4036373.

It is an arithmetic number, because the mean of its divisors is an integer number (461794421550).

Almost surely, 2^{5145455515551} is an apocalyptic number.

5145455515551 is a deficient number, since it is larger than the sum of its proper divisors (2243255229249).

5145455515551 is a wasteful number, since it uses less digits than its factorization.

5145455515551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506506.

The product of its digits is 6250000, while the sum is 51.

The spelling of 5145455515551 in words is "five trillion, one hundred forty-five billion, four hundred fifty-five million, five hundred fifteen thousand, five hundred fifty-one".