345455220255511 has 4 divisors (see below), whose sum is σ = 345580886035000. Its totient is φ = 345329554476024.

The previous prime is 345455220255487. The next prime is 345455220255653. The reversal of 345455220255511 is 115552022554543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345455220255511 - 2²¹ = 345455218158359 is a prime.

It is a super-2 number, since 2×345455220255511² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345455220255911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62832885621 + ... + 62832891118.

It is an arithmetic number, because the mean of its divisors is an integer number (86395221508750).

Almost surely, 2^{345455220255511} is an apocalyptic number.

345455220255511 is a deficient number, since it is larger than the sum of its proper divisors (125665779489).

345455220255511 is a wasteful number, since it uses less digits than its factorization.

345455220255511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125665779488.

The product of its (nonzero) digits is 6000000, while the sum is 49.

The spelling of 345455220255511 in words is "three hundred forty-five trillion, four hundred fifty-five billion, two hundred twenty million, two hundred fifty-five thousand, five hundred eleven".