16615010550 has 96 divisors (see below), whose sum is σ = 42006061440. Its totient is φ = 4345344000.

The previous prime is 16615010539. The next prime is 16615010551. The reversal of 16615010550 is 5501051661.

It is a super-2 number, since 2×16615010550² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16615010551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1725750 + ... + 1735350.

It is an arithmetic number, because the mean of its divisors is an integer number (437563140).

Almost surely, 2^16615010550 is an apocalyptic number.

16615010550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16615010550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21003030720).

16615010550 is an abundant number, since it is smaller than the sum of its proper divisors (25391050890).

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

16615010550 is a wasteful number, since it uses less digits than its factorization.

16615010550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9838 (or 9833 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 16615010550 in words is "sixteen billion, six hundred fifteen million, ten thousand, five hundred fifty".