1157220216617 has 4 divisors (see below), whose sum is σ = 1194549901056. Its totient is φ = 1119890532180.

The previous prime is 1157220216613. The next prime is 1157220216631. The reversal of 1157220216617 is 7166120227511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1157220216617 - 2² = 1157220216613 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1157220216611) 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 3 ways as a sum of consecutive naturals, for example, 18664842173 + ... + 18664842234.

It is an arithmetic number, because the mean of its divisors is an integer number (298637475264).

Almost surely, 2^{1157220216617} is an apocalyptic number.

It is an amenable number.

1157220216617 is a deficient number, since it is larger than the sum of its proper divisors (37329684439).

1157220216617 is an equidigital number, since it uses as much as digits as its factorization.

1157220216617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37329684438.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 1157220216617 in words is "one trillion, one hundred fifty-seven billion, two hundred twenty million, two hundred sixteen thousand, six hundred seventeen".