160221516550 has 24 divisors (see below), whose sum is σ = 298374201936. Its totient is φ = 64010718240.

The previous prime is 160221516541. The next prime is 160221516571. The reversal of 160221516550 is 55615122061.

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, 1905649 + ... + 1987948.

It is an arithmetic number, because the mean of its divisors is an integer number (12432258414).

Almost surely, 2^160221516550 is an apocalyptic number.

160221516550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

160221516550 is a deficient number, since it is larger than the sum of its proper divisors (138152685386).

160221516550 is a wasteful number, since it uses less digits than its factorization.

160221516550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894432 (or 3894427 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 160221516550 in words is "one hundred sixty billion, two hundred twenty-one million, five hundred sixteen thousand, five hundred fifty".