1157918239065 has 32 divisors (see below), whose sum is σ = 2117479265280. Its totient is φ = 529298288064.

The previous prime is 1157918239039. The next prime is 1157918239129. The reversal of 1157918239065 is 5609328197511.

It is not a de Polignac number, because 1157918239065 - 2¹³ = 1157918230873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157918238996 and 1157918239014.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1221246 + ... + 1951224.

It is an arithmetic number, because the mean of its divisors is an integer number (66171227040).

Almost surely, 2^{1157918239065} is an apocalyptic number.

1157918239065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157918239065 is a deficient number, since it is larger than the sum of its proper divisors (959561026215).

1157918239065 is a wasteful number, since it uses less digits than its factorization.

1157918239065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745101.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 1157918239065 in words is "one trillion, one hundred fifty-seven billion, nine hundred eighteen million, two hundred thirty-nine thousand, sixty-five".