15454872216 has 96 divisors (see below), whose sum is σ = 48079643040. Its totient is φ = 4393234944.

The previous prime is 15454872211. The next prime is 15454872217. The reversal of 15454872216 is 61227845451.

15454872216 is a `hidden beast` number, since 1 + 545 + 4 + 87 + 2 + 21 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15454872211) 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, 21460 + ... + 177116.

It is an arithmetic number, because the mean of its divisors is an integer number (500829615).

Almost surely, 2^15454872216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15454872216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24039821520).

15454872216 is an abundant number, since it is smaller than the sum of its proper divisors (32624770824).

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

15454872216 is a wasteful number, since it uses less digits than its factorization.

15454872216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155873 (or 155866 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The spelling of 15454872216 in words is "fifteen billion, four hundred fifty-four million, eight hundred seventy-two thousand, two hundred sixteen".