1121570161556 has 48 divisors (see below), whose sum is σ = 2124214030848. Its totient is φ = 515080944000.

The previous prime is 1121570161507. The next prime is 1121570161567. The reversal of 1121570161556 is 6551610751211.

It is a super-2 number, since 2×1121570161556² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69126461 + ... + 69142683.

It is an arithmetic number, because the mean of its divisors is an integer number (44254458976).

Almost surely, 2^{1121570161556} is an apocalyptic number.

It is an amenable number.

1121570161556 is a deficient number, since it is larger than the sum of its proper divisors (1002643869292).

1121570161556 is a wasteful number, since it uses less digits than its factorization.

1121570161556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22752 (or 22750 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 41.

The spelling of 1121570161556 in words is "one trillion, one hundred twenty-one billion, five hundred seventy million, one hundred sixty-one thousand, five hundred fifty-six".