1156783923345 has 16 divisors (see below), whose sum is σ = 1914676839360. Its totient is φ = 595677238464.

The previous prime is 1156783923343. The next prime is 1156783923389. The reversal of 1156783923345 is 5433293876511.

It is a happy number.

It is not a de Polignac number, because 1156783923345 - 2¹ = 1156783923343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1156783923341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329636259 + ... + 1329637128.

It is an arithmetic number, because the mean of its divisors is an integer number (119667302460).

Almost surely, 2^{1156783923345} is an apocalyptic number.

1156783923345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1156783923345 is a deficient number, since it is larger than the sum of its proper divisors (757892916015).

1156783923345 is a wasteful number, since it uses less digits than its factorization.

1156783923345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2659273424.

The product of its digits is 16329600, while the sum is 57.

The spelling of 1156783923345 in words is "one trillion, one hundred fifty-six billion, seven hundred eighty-three million, nine hundred twenty-three thousand, three hundred forty-five".