2155304350505 has 16 divisors (see below), whose sum is σ = 2630093716800. Its totient is φ = 1695119732160.

The previous prime is 2155304350489. The next prime is 2155304350519. The reversal of 2155304350505 is 5050534035512.

It is not a de Polignac number, because 2155304350505 - 2⁴ = 2155304350489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181795 + ... + 2388984.

It is an arithmetic number, because the mean of its divisors is an integer number (164380857300).

Almost surely, 2^{2155304350505} is an apocalyptic number.

It is an amenable number.

2155304350505 is a deficient number, since it is larger than the sum of its proper divisors (474789366295).

2155304350505 is a wasteful number, since it uses less digits than its factorization.

2155304350505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3572824.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 2155304350505 in words is "two trillion, one hundred fifty-five billion, three hundred four million, three hundred fifty thousand, five hundred five".