1156191213446 has 8 divisors (see below), whose sum is σ = 1734444702120. Its totient is φ = 578042979408.

The previous prime is 1156191213409. The next prime is 1156191213449. The reversal of 1156191213446 is 6443121916511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1156191213397 and 1156191213406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156191213449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26286191 + ... + 26330138.

It is an arithmetic number, because the mean of its divisors is an integer number (216805587765).

Almost surely, 2^{1156191213446} is an apocalyptic number.

1156191213446 is a deficient number, since it is larger than the sum of its proper divisors (578253488674).

1156191213446 is a wasteful number, since it uses less digits than its factorization.

1156191213446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52627318.

The product of its digits is 155520, while the sum is 44.

The spelling of 1156191213446 in words is "one trillion, one hundred fifty-six billion, one hundred ninety-one million, two hundred thirteen thousand, four hundred forty-six".