1121246550465 has 16 divisors (see below), whose sum is σ = 1796524814400. Its totient is φ = 597154715712.

The previous prime is 1121246550443. The next prime is 1121246550469. The reversal of 1121246550465 is 5640556421211.

It is a happy number.

It is not a de Polignac number, because 1121246550465 - 2⁷ = 1121246550337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121246550469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52704295 + ... + 52725564.

It is an arithmetic number, because the mean of its divisors is an integer number (112282800900).

Almost surely, 2^{1121246550465} is an apocalyptic number.

1121246550465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121246550465 is a deficient number, since it is larger than the sum of its proper divisors (675278263935).

1121246550465 is a wasteful number, since it uses less digits than its factorization.

1121246550465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105430576.

The product of its (nonzero) digits is 288000, while the sum is 42.

The spelling of 1121246550465 in words is "one trillion, one hundred twenty-one billion, two hundred forty-six million, five hundred fifty thousand, four hundred sixty-five".