16256326254 has 64 divisors (see below), whose sum is σ = 38000793600. Its totient is φ = 4539506688.

The previous prime is 16256326243. The next prime is 16256326277. The reversal of 16256326254 is 45262365261.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1512652 + ... + 1523360.

It is an arithmetic number, because the mean of its divisors is an integer number (593762400).

Almost surely, 2^16256326254 is an apocalyptic number.

16256326254 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 16256326254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19000396800).

16256326254 is an abundant number, since it is smaller than the sum of its proper divisors (21744467346).

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

16256326254 is a wasteful number, since it uses less digits than its factorization.

16256326254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11537.

The product of its digits is 518400, while the sum is 42.

The spelling of 16256326254 in words is "sixteen billion, two hundred fifty-six million, three hundred twenty-six thousand, two hundred fifty-four".