355568161987 has 12 divisors (see below), whose sum is σ = 368603890200. Its totient is φ = 342979068992.

The previous prime is 355568161981. The next prime is 355568162023. The reversal of 355568161987 is 789161865553.

It is a de Polignac number, because none of the positive numbers 2^k-355568161987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355568161981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 680688 + ... + 1083730.

It is an arithmetic number, because the mean of its divisors is an integer number (30716990850).

Almost surely, 2^355568161987 is an apocalyptic number.

355568161987 is a deficient number, since it is larger than the sum of its proper divisors (13035728213).

355568161987 is a wasteful number, since it uses less digits than its factorization.

355568161987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404150 (or 404121 counting only the distinct ones).

The product of its digits is 54432000, while the sum is 64.

The spelling of 355568161987 in words is "three hundred fifty-five billion, five hundred sixty-eight million, one hundred sixty-one thousand, nine hundred eighty-seven".