1157656667268 has 24 divisors (see below), whose sum is σ = 2764017470368. Its totient is φ = 376911472896.

The previous prime is 1157656667239. The next prime is 1157656667269. The reversal of 1157656667268 is 8627666567511.

It is a junction number, because it is equal to n+sod(n) for n = 1157656667199 and 1157656667208.

It is not an unprimeable number, because it can be changed into a prime (1157656667269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121759821 + ... + 1121760852.

Almost surely, 2^{1157656667268} is an apocalyptic number.

It is an amenable number.

1157656667268 is an abundant number, since it is smaller than the sum of its proper divisors (1606360803100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1157656667268 is a wasteful number, since it uses less digits than its factorization.

1157656667268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243520723 (or 2243520721 counting only the distinct ones).

The product of its digits is 152409600, while the sum is 66.

The spelling of 1157656667268 in words is "one trillion, one hundred fifty-seven billion, six hundred fifty-six million, six hundred sixty-seven thousand, two hundred sixty-eight".