1155664403612 has 24 divisors (see below), whose sum is σ = 2176482727440. Its totient is φ = 534926626560.

The previous prime is 1155664403603. The next prime is 1155664403617. The reversal of 1155664403612 is 2163044665511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155664403617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139299662 + ... + 139307957.

It is an arithmetic number, because the mean of its divisors is an integer number (90686780310).

Almost surely, 2^{1155664403612} is an apocalyptic number.

It is an amenable number.

1155664403612 is a deficient number, since it is larger than the sum of its proper divisors (1020818323828).

1155664403612 is a wasteful number, since it uses less digits than its factorization.

1155664403612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278607701 (or 278607699 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 1155664403612 in words is "one trillion, one hundred fifty-five billion, six hundred sixty-four million, four hundred three thousand, six hundred twelve".