1121570161550 has 24 divisors (see below), whose sum is σ = 2086350515616. Its totient is φ = 448578599040.

The previous prime is 1121570161507. The next prime is 1121570161567. The reversal of 1121570161550 is 551610751211.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121570161550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 776939 + ... + 1687238.

It is an arithmetic number, because the mean of its divisors is an integer number (86931271484).

Almost surely, 2^{1121570161550} is an apocalyptic number.

1121570161550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121570161550 is a deficient number, since it is larger than the sum of its proper divisors (964780354066).

1121570161550 is a wasteful number, since it uses less digits than its factorization.

1121570161550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473292 (or 2473287 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 35.

The spelling of 1121570161550 in words is "one trillion, one hundred twenty-one billion, five hundred seventy million, one hundred sixty-one thousand, five hundred fifty".