16557286074 has 64 divisors (see below), whose sum is σ = 38640645120. Its totient is φ = 4632163200.

The previous prime is 16557286073. The next prime is 16557286117. The reversal of 16557286074 is 47068275561.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16557286073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 406749 + ... + 445599.

It is an arithmetic number, because the mean of its divisors is an integer number (603760080).

Almost surely, 2^16557286074 is an apocalyptic number.

16557286074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16557286074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19320322560).

16557286074 is an abundant number, since it is smaller than the sum of its proper divisors (22083359046).

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

16557286074 is a wasteful number, since it uses less digits than its factorization.

16557286074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39075.

The product of its (nonzero) digits is 2822400, while the sum is 51.

The spelling of 16557286074 in words is "sixteen billion, five hundred fifty-seven million, two hundred eighty-six thousand, seventy-four".