2155355310045 has 16 divisors (see below), whose sum is σ = 3941221138560. Its totient is φ = 985305284544.

The previous prime is 2155355310037. The next prime is 2155355310067. The reversal of 2155355310045 is 5400135535512.

It is not a de Polignac number, because 2155355310045 - 2³ = 2155355310037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2155355309985 and 2155355310012.

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 15 ways as a sum of consecutive naturals, for example, 10263596610 + ... + 10263596819.

It is an arithmetic number, because the mean of its divisors is an integer number (246326321160).

Almost surely, 2^{2155355310045} is an apocalyptic number.

It is an amenable number.

2155355310045 is a deficient number, since it is larger than the sum of its proper divisors (1785865828515).

2155355310045 is a wasteful number, since it uses less digits than its factorization.

2155355310045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20527193444.

The product of its (nonzero) digits is 225000, while the sum is 39.

The spelling of 2155355310045 in words is "two trillion, one hundred fifty-five billion, three hundred fifty-five million, three hundred ten thousand, forty-five".