2153511146655 has 48 divisors (see below), whose sum is σ = 4203451699200. Its totient is φ = 1010445105600.

The previous prime is 2153511146623. The next prime is 2153511146687. The reversal of 2153511146655 is 5566411153512.

2153511146655 is a `hidden beast` number, since 2 + 1 + 535 + 1 + 1 + 1 + 4 + 66 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (2153511146623) and next prime (2153511146687).

It is not a de Polignac number, because 2153511146655 - 2⁵ = 2153511146623 is a prime.

It is a super-2 number, since 2×2153511146655² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2153511146655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70154455 + ... + 70185144.

It is an arithmetic number, because the mean of its divisors is an integer number (87571910400).

Almost surely, 2^{2153511146655} is an apocalyptic number.

2153511146655 is a deficient number, since it is larger than the sum of its proper divisors (2049940552545).

2153511146655 is a wasteful number, since it uses less digits than its factorization.

2153511146655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140339652 (or 140339649 counting only the distinct ones).

The product of its digits is 540000, while the sum is 45.

The spelling of 2153511146655 in words is "two trillion, one hundred fifty-three billion, five hundred eleven million, one hundred forty-six thousand, six hundred fifty-five".