1161650011556 has 24 divisors (see below), whose sum is σ = 2062939132800. Its totient is φ = 572295506112.

The previous prime is 1161650011549. The next prime is 1161650011601. The reversal of 1161650011556 is 6551100561611.

It is a happy number.

It is a super-2 number, since 2×1161650011556² (a number of 25 digits) contains 22 as substring.

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, 7002281 + ... + 7166256.

It is an arithmetic number, because the mean of its divisors is an integer number (85955797200).

Almost surely, 2^{1161650011556} is an apocalyptic number.

It is an amenable number.

1161650011556 is a deficient number, since it is larger than the sum of its proper divisors (901289121244).

1161650011556 is a wasteful number, since it uses less digits than its factorization.

1161650011556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14168843 (or 14168841 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 1161650011556 in words is "one trillion, one hundred sixty-one billion, six hundred fifty million, eleven thousand, five hundred fifty-six".