1157521011683 has 4 divisors (see below), whose sum is σ = 1158581985288. Its totient is φ = 1156460038080.

The previous prime is 1157521011659. The next prime is 1157521011733. The reversal of 1157521011683 is 3861101257511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1157521011683 - 2²⁰ = 1157519963107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1157521011683.

It is not an unprimeable number, because it can be changed into a prime (1157521011613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530485166 + ... + 530487347.

It is an arithmetic number, because the mean of its divisors is an integer number (289645496322).

Almost surely, 2^{1157521011683} is an apocalyptic number.

1157521011683 is a deficient number, since it is larger than the sum of its proper divisors (1060973605).

1157521011683 is a wasteful number, since it uses less digits than its factorization.

1157521011683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060973604.

The product of its (nonzero) digits is 50400, while the sum is 41.

The spelling of 1157521011683 in words is "one trillion, one hundred fifty-seven billion, five hundred twenty-one million, eleven thousand, six hundred eighty-three".