1157011222605 has 32 divisors (see below), whose sum is σ = 2164879478784. Its totient is φ = 516618962496.

The previous prime is 1157011222589. The next prime is 1157011222621. The reversal of 1157011222605 is 5062221107511.

It is an interprime number because it is at equal distance from previous prime (1157011222589) and next prime (1157011222621).

It is not a de Polignac number, because 1157011222605 - 2⁴ = 1157011222589 is a prime.

It is a congruent number.

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, 128125189 + ... + 128134218.

It is an arithmetic number, because the mean of its divisors is an integer number (67652483712).

Almost surely, 2^{1157011222605} is an apocalyptic number.

1157011222605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1157011222605 is a deficient number, since it is larger than the sum of its proper divisors (1007868256179).

1157011222605 is a wasteful number, since it uses less digits than its factorization.

1157011222605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256259465.

The product of its (nonzero) digits is 8400, while the sum is 33.

The spelling of 1157011222605 in words is "one trillion, one hundred fifty-seven billion, eleven million, two hundred twenty-two thousand, six hundred five".