3455141345561 has 4 divisors (see below), whose sum is σ = 3455748261732. Its totient is φ = 3454534429392.

The previous prime is 3455141345543. The next prime is 3455141345567. The reversal of 3455141345561 is 1655431415543.

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

It can be written as a sum of positive squares in 2 ways, for example, as 476603833225 + 2978537512336 = 690365^2 + 1725844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3455141345561 is a prime.

It is a super-2 number, since 2×3455141345561² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3455141345567) 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, 303449546 + ... + 303460931.

It is an arithmetic number, because the mean of its divisors is an integer number (863937065433).

Almost surely, 2^{3455141345561} is an apocalyptic number.

It is an amenable number.

3455141345561 is a deficient number, since it is larger than the sum of its proper divisors (606916171).

3455141345561 is an equidigital number, since it uses as much as digits as its factorization.

3455141345561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606916170.

The product of its digits is 2160000, while the sum is 47.

The spelling of 3455141345561 in words is "three trillion, four hundred fifty-five billion, one hundred forty-one million, three hundred forty-five thousand, five hundred sixty-one".