1156098128497 has 8 divisors (see below), whose sum is σ = 1253985797120. Its totient is φ = 1059490037520.

The previous prime is 1156098128477. The next prime is 1156098128509. The reversal of 1156098128497 is 7948218906511.

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 1156098128497 - 2¹⁹ = 1156097604209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156098128417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319892529 + ... + 319896142.

It is an arithmetic number, because the mean of its divisors is an integer number (156748224640).

Almost surely, 2^{1156098128497} is an apocalyptic number.

It is an amenable number.

1156098128497 is a deficient number, since it is larger than the sum of its proper divisors (97887668623).

1156098128497 is a wasteful number, since it uses less digits than its factorization.

1156098128497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639788823.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The spelling of 1156098128497 in words is "one trillion, one hundred fifty-six billion, ninety-eight million, one hundred twenty-eight thousand, four hundred ninety-seven".