1157513056505 has 16 divisors (see below), whose sum is σ = 1544116675584. Its totient is φ = 827205359040.

The previous prime is 1157513056501. The next prime is 1157513056517. The reversal of 1157513056505 is 5056503157511.

It is not a de Polignac number, because 1157513056505 - 2² = 1157513056501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157513056501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287222069 + ... + 287226098.

It is an arithmetic number, because the mean of its divisors is an integer number (96507292224).

Almost surely, 2^{1157513056505} is an apocalyptic number.

It is an amenable number.

1157513056505 is a deficient number, since it is larger than the sum of its proper divisors (386603619079).

1157513056505 is a wasteful number, since it uses less digits than its factorization.

1157513056505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574448216.

The product of its (nonzero) digits is 393750, while the sum is 44.

The spelling of 1157513056505 in words is "one trillion, one hundred fifty-seven billion, five hundred thirteen million, fifty-six thousand, five hundred five".