16351156240 has 80 divisors (see below), whose sum is σ = 40361867568. Its totient is φ = 6139035648.

The previous prime is 16351156187. The next prime is 16351156259. The reversal of 16351156240 is 4265115361.

It can be written as a sum of positive squares in 8 ways, for example, as 783104256 + 15568051984 = 27984^2 + 124772^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a junction number, because it is equal to n+sod(n) for n = 16351156196 and 16351156205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 491164 + ... + 523396.

Almost surely, 2^16351156240 is an apocalyptic number.

16351156240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16351156240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20180933784).

16351156240 is an abundant number, since it is smaller than the sum of its proper divisors (24010711328).

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

16351156240 is a wasteful number, since it uses less digits than its factorization.

16351156240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32636 (or 32630 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 16351156240 in words is "sixteen billion, three hundred fifty-one million, one hundred fifty-six thousand, two hundred forty".