2155080515575 has 24 divisors (see below), whose sum is σ = 2944788393008. Its totient is φ = 1554433735680.

The previous prime is 2155080515557. The next prime is 2155080515597. The reversal of 2155080515575 is 5755150805512.

It is not a de Polignac number, because 2155080515575 - 2⁷ = 2155080515447 is a prime.

It is a super-2 number, since 2×2155080515575² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77090874 + ... + 77118823.

Almost surely, 2^{2155080515575} is an apocalyptic number.

2155080515575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2155080515575 is a deficient number, since it is larger than the sum of its proper divisors (789707877433).

2155080515575 is a wasteful number, since it uses less digits than its factorization.

2155080515575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154209763 (or 154209758 counting only the distinct ones).

The product of its (nonzero) digits is 1750000, while the sum is 49.

The spelling of 2155080515575 in words is "two trillion, one hundred fifty-five billion, eighty million, five hundred fifteen thousand, five hundred seventy-five".