1165373258257 has 12 divisors (see below), whose sum is σ = 1283301422640. Its totient is φ = 1057496454768.

The previous prime is 1165373258251. The next prime is 1165373258267. The reversal of 1165373258257 is 7528523735611.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-1165373258257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1165373258198 and 1165373258207.

It is not an unprimeable number, because it can be changed into a prime (1165373258251) 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 11 ways as a sum of consecutive naturals, for example, 58428163 + ... + 58448104.

It is an arithmetic number, because the mean of its divisors is an integer number (106941785220).

Almost surely, 2^{1165373258257} is an apocalyptic number.

It is an amenable number.

1165373258257 is a deficient number, since it is larger than the sum of its proper divisors (117928164383).

1165373258257 is a wasteful number, since it uses less digits than its factorization.

1165373258257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116876352 (or 116876339 counting only the distinct ones).

The product of its digits is 10584000, while the sum is 55.

The spelling of 1165373258257 in words is "one trillion, one hundred sixty-five billion, three hundred seventy-three million, two hundred fifty-eight thousand, two hundred fifty-seven".