1100145548978 has 8 divisors (see below), whose sum is σ = 1885963798272. Its totient is φ = 471490949556.

The previous prime is 1100145548939. The next prime is 1100145548989. The reversal of 1100145548978 is 8798455410011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1100145548978² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39290912450 + ... + 39290912477.

It is an arithmetic number, because the mean of its divisors is an integer number (235745474784).

Almost surely, 2^{1100145548978} is an apocalyptic number.

1100145548978 is a deficient number, since it is larger than the sum of its proper divisors (785818249294).

1100145548978 is an equidigital number, since it uses as much as digits as its factorization.

1100145548978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78581824936.

The product of its (nonzero) digits is 1612800, while the sum is 53.

The spelling of 1100145548978 in words is "one trillion, one hundred billion, one hundred forty-five million, five hundred forty-eight thousand, nine hundred seventy-eight".