1550016643 has 8 divisors (see below), whose sum is σ = 1772379488. Its totient is φ = 1327886784.

The previous prime is 1550016623. The next prime is 1550016653. The reversal of 1550016643 is 3466100551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1550016643 - 2¹³ = 1550008451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1550016623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43746 + ... + 70807.

It is an arithmetic number, because the mean of its divisors is an integer number (221547436).

Almost surely, 2^1550016643 is an apocalyptic number.

1550016643 is a deficient number, since it is larger than the sum of its proper divisors (222362845).

1550016643 is a wasteful number, since it uses less digits than its factorization.

1550016643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116493.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1550016643 is about 39370.2507358030. The cubic root of 1550016643 is about 1157.2986693670.

The spelling of 1550016643 in words is "one billion, five hundred fifty million, sixteen thousand, six hundred forty-three".