5155436609566 has 16 divisors (see below), whose sum is σ = 7806833804880. Its totient is φ = 2553175235520.

The previous prime is 5155436609501. The next prime is 5155436609567. The reversal of 5155436609566 is 6659066345515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5155436609567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3515920 + ... + 4761571.

It is an arithmetic number, because the mean of its divisors is an integer number (487927112805).

Almost surely, 2^{5155436609566} is an apocalyptic number.

5155436609566 is a deficient number, since it is larger than the sum of its proper divisors (2651397195314).

5155436609566 is a wasteful number, since it uses less digits than its factorization.

5155436609566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280459.

The product of its (nonzero) digits is 87480000, while the sum is 61.

The spelling of 5155436609566 in words is "five trillion, one hundred fifty-five billion, four hundred thirty-six million, six hundred nine thousand, five hundred sixty-six".