9946451603554 has 32 divisors (see below), whose sum is σ = 15719554137600. Its totient is φ = 4714248443520.

The previous prime is 9946451603549. The next prime is 9946451603563. The reversal of 9946451603554 is 4553061546499.

It is a happy number.

9946451603554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 9946451603492 and 9946451603501.

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, 7832689 + ... + 9013540.

It is an arithmetic number, because the mean of its divisors is an integer number (491236066800).

Almost surely, 2^{9946451603554} is an apocalyptic number.

9946451603554 is a deficient number, since it is larger than the sum of its proper divisors (5773102534046).

9946451603554 is a wasteful number, since it uses less digits than its factorization.

9946451603554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16846458.

The product of its (nonzero) digits is 69984000, while the sum is 61.

The spelling of 9946451603554 in words is "nine trillion, nine hundred forty-six billion, four hundred fifty-one million, six hundred three thousand, five hundred fifty-four".