1157011667557 has 4 divisors (see below), whose sum is σ = 1166121995776. Its totient is φ = 1147901339340.

The previous prime is 1157011667551. The next prime is 1157011667657. The reversal of 1157011667557 is 7557661107511.

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 1157011667557 - 2³⁹ = 607255853669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157011667551) 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, 4555163919 + ... + 4555164172.

It is an arithmetic number, because the mean of its divisors is an integer number (291530498944).

Almost surely, 2^{1157011667557} is an apocalyptic number.

It is an amenable number.

1157011667557 is a deficient number, since it is larger than the sum of its proper divisors (9110328219).

1157011667557 is an equidigital number, since it uses as much as digits as its factorization.

1157011667557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9110328218.

The product of its (nonzero) digits is 1543500, while the sum is 52.

The spelling of 1157011667557 in words is "one trillion, one hundred fifty-seven billion, eleven million, six hundred sixty-seven thousand, five hundred fifty-seven".