1616550354 has 48 divisors (see below), whose sum is σ = 3660800832. Its totient is φ = 514577184.

The previous prime is 1616550317. The next prime is 1616550359. The reversal of 1616550354 is 4530556161.

1616550354 is a `hidden beast` number, since 1 + 616 + 5 + 5 + 0 + 35 + 4 = 666.

It is a super-2 number, since 2×1616550354² = 5226470094035050632, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1616550359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279904 + ... + 285620.

It is an arithmetic number, because the mean of its divisors is an integer number (76266684).

Almost surely, 2^1616550354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616550354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1830400416).

1616550354 is an abundant number, since it is smaller than the sum of its proper divisors (2044250478).

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

1616550354 is a wasteful number, since it uses less digits than its factorization.

1616550354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The square root of 1616550354 is about 40206.3471854880. The cubic root of 1616550354 is about 1173.6260636662.

The spelling of 1616550354 in words is "one billion, six hundred sixteen million, five hundred fifty thousand, three hundred fifty-four".