1156780607671 has 8 divisors (see below), whose sum is σ = 1274734981520. Its totient is φ = 1042964983872.

The previous prime is 1156780607603. The next prime is 1156780607707. The reversal of 1156780607671 is 1767060876511.

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

It is a cyclic number.

It is not a de Polignac number, because 1156780607671 - 2¹⁵ = 1156780574903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156780607771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034686926 + ... + 1034688043.

It is an arithmetic number, because the mean of its divisors is an integer number (159341872690).

Almost surely, 2^{1156780607671} is an apocalyptic number.

1156780607671 is a deficient number, since it is larger than the sum of its proper divisors (117954373849).

1156780607671 is a wasteful number, since it uses less digits than its factorization.

1156780607671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069375025.

The product of its (nonzero) digits is 2963520, while the sum is 55.

The spelling of 1156780607671 in words is "one trillion, one hundred fifty-six billion, seven hundred eighty million, six hundred seven thousand, six hundred seventy-one".