1156105315942 has 4 divisors (see below), whose sum is σ = 1734157973916. Its totient is φ = 578052657970.

The previous prime is 1156105315919. The next prime is 1156105315949. The reversal of 1156105315942 is 2495135016511.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156105315949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289026328984 + ... + 289026328987.

It is an arithmetic number, because the mean of its divisors is an integer number (433539493479).

Almost surely, 2^{1156105315942} is an apocalyptic number.

1156105315942 is a deficient number, since it is larger than the sum of its proper divisors (578052657974).

1156105315942 is an equidigital number, since it uses as much as digits as its factorization.

1156105315942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578052657973.

The product of its (nonzero) digits is 162000, while the sum is 43.

The spelling of 1156105315942 in words is "one trillion, one hundred fifty-six billion, one hundred five million, three hundred fifteen thousand, nine hundred forty-two".