2155654033455 has 64 divisors (see below), whose sum is σ = 3912489584640. Its totient is φ = 1004711371776.

The previous prime is 2155654033441. The next prime is 2155654033501. The reversal of 2155654033455 is 5543304565512.

It is not a de Polignac number, because 2155654033455 - 2⁴ = 2155654033439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5313699 + ... + 5704971.

It is an arithmetic number, because the mean of its divisors is an integer number (61132649760).

Almost surely, 2^{2155654033455} is an apocalyptic number.

2155654033455 is a deficient number, since it is larger than the sum of its proper divisors (1756835551185).

2155654033455 is a wasteful number, since it uses less digits than its factorization.

2155654033455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392800.

The product of its (nonzero) digits is 5400000, while the sum is 48.

Adding to 2155654033455 its reverse (5543304565512), we get a palindrome (7698958598967).

The spelling of 2155654033455 in words is "two trillion, one hundred fifty-five billion, six hundred fifty-four million, thirty-three thousand, four hundred fifty-five".