1157665533646 has 16 divisors (see below), whose sum is σ = 1741172999040. Its totient is φ = 577274697720.

The previous prime is 1157665533637. The next prime is 1157665533677. The reversal of 1157665533646 is 6463355667511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22112761 + ... + 22165051.

It is an arithmetic number, because the mean of its divisors is an integer number (108823312440).

Almost surely, 2^{1157665533646} is an apocalyptic number.

1157665533646 is a deficient number, since it is larger than the sum of its proper divisors (583507465394).

1157665533646 is a wasteful number, since it uses less digits than its factorization.

1157665533646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81879.

The product of its digits is 40824000, while the sum is 58.

The spelling of 1157665533646 in words is "one trillion, one hundred fifty-seven billion, six hundred sixty-five million, five hundred thirty-three thousand, six hundred forty-six".