77015506655151 has 16 divisors (see below), whose sum is σ = 114183549638400. Its totient is φ = 51304744869624.

The previous prime is 77015506655141. The next prime is 77015506655161. The reversal of 77015506655151 is 15155660551077.

77015506655151 is a `hidden beast` number, since 7 + 7 + 0 + 15 + 50 + 6 + 65 + 515 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (77015506655141) and next prime (77015506655161).

It is not a de Polignac number, because 77015506655151 - 2¹¹ = 77015506653103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77015506655141) 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, 1081248001 + ... + 1081319226.

It is an arithmetic number, because the mean of its divisors is an integer number (7136471852400).

Almost surely, 2^{77015506655151} is an apocalyptic number.

77015506655151 is a deficient number, since it is larger than the sum of its proper divisors (37168042983249).

77015506655151 is a wasteful number, since it uses less digits than its factorization.

77015506655151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162568555 (or 2162568549 counting only the distinct ones).

The product of its (nonzero) digits is 5512500, while the sum is 54.

The spelling of 77015506655151 in words is "seventy-seven trillion, fifteen billion, five hundred six million, six hundred fifty-five thousand, one hundred fifty-one".