1198149505546 has 32 divisors (see below), whose sum is σ = 2062033459200. Its totient is φ = 511477408176.

The previous prime is 1198149505499. The next prime is 1198149505561. The reversal of 1198149505546 is 6455059418911.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41956845 + ... + 41985391.

It is an arithmetic number, because the mean of its divisors is an integer number (64438545600).

Almost surely, 2^{1198149505546} is an apocalyptic number.

1198149505546 is a deficient number, since it is larger than the sum of its proper divisors (863883953654).

1198149505546 is a wasteful number, since it uses less digits than its factorization.

1198149505546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40218.

The product of its (nonzero) digits is 7776000, while the sum is 58.

The spelling of 1198149505546 in words is "one trillion, one hundred ninety-eight billion, one hundred forty-nine million, five hundred five thousand, five hundred forty-six".