1152155512412 has 24 divisors (see below), whose sum is σ = 2153082610560. Its totient is φ = 538270649280.

The previous prime is 1152155512397. The next prime is 1152155512429. The reversal of 1152155512412 is 2142155512511.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 160196003 + ... + 160203194.

It is an arithmetic number, because the mean of its divisors is an integer number (89711775440).

Almost surely, 2^{1152155512412} is an apocalyptic number.

It is an amenable number.

1152155512412 is a deficient number, since it is larger than the sum of its proper divisors (1000927098148).

1152155512412 is a wasteful number, since it uses less digits than its factorization.

1152155512412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320399261 (or 320399259 counting only the distinct ones).

The product of its digits is 20000, while the sum is 35.

Subtracting 1152155512412 from its reverse (2142155512511), we obtain a palindrome (990000000099).

The spelling of 1152155512412 in words is "one trillion, one hundred fifty-two billion, one hundred fifty-five million, five hundred twelve thousand, four hundred twelve".