1165516151055 has 32 divisors (see below), whose sum is σ = 1917175785984. Its totient is φ = 604192830336.

The previous prime is 1165516151039. The next prime is 1165516151113. The reversal of 1165516151055 is 5501516155611.

It is not a de Polignac number, because 1165516151055 - 2⁴ = 1165516151039 is a prime.

It is a super-2 number, since 2×1165516151055² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1165516150998 and 1165516151016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522609 + ... + 1613738.

It is an arithmetic number, because the mean of its divisors is an integer number (59911743312).

Almost surely, 2^{1165516151055} is an apocalyptic number.

1165516151055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1165516151055 is a deficient number, since it is larger than the sum of its proper divisors (751659634929).

1165516151055 is a wasteful number, since it uses less digits than its factorization.

1165516151055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137375.

The product of its (nonzero) digits is 112500, while the sum is 42.

The spelling of 1165516151055 in words is "one trillion, one hundred sixty-five billion, five hundred sixteen million, one hundred fifty-one thousand, fifty-five".