1156105310072 has 32 divisors (see below), whose sum is σ = 2266126411680. Its totient is φ = 551897850240.

The previous prime is 1156105310023. The next prime is 1156105310083. The reversal of 1156105310072 is 2700135016511.

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, 5707463 + ... + 5906550.

It is an arithmetic number, because the mean of its divisors is an integer number (70816450365).

Almost surely, 2^{1156105310072} is an apocalyptic number.

It is an amenable number.

1156105310072 is a deficient number, since it is larger than the sum of its proper divisors (1110021101608).

1156105310072 is a wasteful number, since it uses less digits than its factorization.

1156105310072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11614583 (or 11614579 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 32.

The spelling of 1156105310072 in words is "one trillion, one hundred fifty-six billion, one hundred five million, three hundred ten thousand, seventy-two".