1211663546104 has 32 divisors (see below), whose sum is σ = 2486371904640. Its totient is φ = 548985224800.

The previous prime is 1211663546057. The next prime is 1211663546141. The reversal of 1211663546104 is 4016453661121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22109134 + ... + 22163869.

It is an arithmetic number, because the mean of its divisors is an integer number (77699122020).

Almost surely, 2^{1211663546104} is an apocalyptic number.

It is an amenable number.

1211663546104 is an abundant number, since it is smaller than the sum of its proper divisors (1274708358536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1211663546104 is a wasteful number, since it uses less digits than its factorization.

1211663546104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44273331 (or 44273327 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1211663546104 in words is "one trillion, two hundred eleven billion, six hundred sixty-three million, five hundred forty-six thousand, one hundred four".