16015066550 has 48 divisors (see below), whose sum is σ = 35141655552. Its totient is φ = 5313751200.

The previous prime is 16015066523. The next prime is 16015066553. The reversal of 16015066550 is 5566051061.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 16015066550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16015066553) 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, 727172 + ... + 748871.

It is an arithmetic number, because the mean of its divisors is an integer number (732117824).

Almost surely, 2^16015066550 is an apocalyptic number.

16015066550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16015066550 is an abundant number, since it is smaller than the sum of its proper divisors (19126589002).

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

16015066550 is a wasteful number, since it uses less digits than its factorization.

16015066550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476093 (or 1476088 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 16015066550 in words is "sixteen billion, fifteen million, sixty-six thousand, five hundred fifty".