1157680555 has 8 divisors (see below), whose sum is σ = 1390489632. Its totient is φ = 925295808.

The previous prime is 1157680519. The next prime is 1157680561. The reversal of 1157680555 is 5550867511.

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 1157680555 - 2¹¹ = 1157678507 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100047 + ... + 111016.

It is an arithmetic number, because the mean of its divisors is an integer number (173811204).

Almost surely, 2^1157680555 is an apocalyptic number.

1157680555 is a deficient number, since it is larger than the sum of its proper divisors (232809077).

1157680555 is a wasteful number, since it uses less digits than its factorization.

1157680555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212165.

The product of its (nonzero) digits is 210000, while the sum is 43.

The square root of 1157680555 is about 34024.7050685234. The cubic root of 1157680555 is about 1050.0167964055.

The spelling of 1157680555 in words is "one billion, one hundred fifty-seven million, six hundred eighty thousand, five hundred fifty-five".