1659054216 has 64 divisors (see below), whose sum is σ = 4361195520. Its totient is φ = 524912960.

The previous prime is 1659054209. The next prime is 1659054263. The reversal of 1659054216 is 6124509561.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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, 60841 + ... + 83783.

It is an arithmetic number, because the mean of its divisors is an integer number (68143680).

Almost surely, 2^1659054216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1659054216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2180597760).

1659054216 is an abundant number, since it is smaller than the sum of its proper divisors (2702141304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1659054216 is a wasteful number, since it uses less digits than its factorization.

1659054216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23106 (or 23102 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 1659054216 is about 40731.4892435816. The cubic root of 1659054216 is about 1183.8232345832.

The spelling of 1659054216 in words is "one billion, six hundred fifty-nine million, fifty-four thousand, two hundred sixteen".