1157146217506 has 8 divisors (see below), whose sum is σ = 1736172173484. Its totient is φ = 578422159680.

The previous prime is 1157146217501. The next prime is 1157146217551. The reversal of 1157146217506 is 6057126417511.

It can be written as a sum of positive squares in 2 ways, for example, as 1155429358281 + 1716859225 = 1074909^2 + 41435^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1157146217501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75464955 + ... + 75480286.

Almost surely, 2^{1157146217506} is an apocalyptic number.

1157146217506 is a deficient number, since it is larger than the sum of its proper divisors (579025955978).

1157146217506 is a wasteful number, since it uses less digits than its factorization.

1157146217506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150949076.

The product of its (nonzero) digits is 352800, while the sum is 46.

The spelling of 1157146217506 in words is "one trillion, one hundred fifty-seven billion, one hundred forty-six million, two hundred seventeen thousand, five hundred six".