945554555461 has 4 divisors (see below), whose sum is σ = 945597696300. Its totient is φ = 945511414624.

The previous prime is 945554555437. The next prime is 945554555483. The reversal of 945554555461 is 164555455549.

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 845515191361 + 100039364100 = 919519^2 + 316290^2 .

It is a cyclic number.

It is not a de Polignac number, because 945554555461 - 2³¹ = 943407071813 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 945554555396 and 945554555405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (945554555861) 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, 21537526 + ... + 21581383.

It is an arithmetic number, because the mean of its divisors is an integer number (236399424075).

Almost surely, 2^945554555461 is an apocalyptic number.

It is an amenable number.

945554555461 is a deficient number, since it is larger than the sum of its proper divisors (43140839).

945554555461 is a wasteful number, since it uses less digits than its factorization.

945554555461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43140838.

The product of its digits is 54000000, while the sum is 58.

The spelling of 945554555461 in words is "nine hundred forty-five billion, five hundred fifty-four million, five hundred fifty-five thousand, four hundred sixty-one".