9554645546 has 4 divisors (see below), whose sum is σ = 14331968322. Its totient is φ = 4777322772.

The previous prime is 9554645489. The next prime is 9554645549. The reversal of 9554645546 is 6455464559.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6455464559 = 2137 ⋅3020807.

It can be written as a sum of positive squares in only one way, i.e., 5746398025 + 3808247521 = 75805^2 + 61711^2 .

It is not an unprimeable number, because it can be changed into a prime (9554645549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2388661385 + ... + 2388661388.

Almost surely, 2^9554645546 is an apocalyptic number.

9554645546 is a deficient number, since it is larger than the sum of its proper divisors (4777322776).

9554645546 is a wasteful number, since it uses less digits than its factorization.

9554645546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4777322775.

The product of its digits is 12960000, while the sum is 53.

The square root of 9554645546 is about 97747.8672196995. The cubic root of 9554645546 is about 2121.9648884398.

The spelling of 9554645546 in words is "nine billion, five hundred fifty-four million, six hundred forty-five thousand, five hundred forty-six".