15451103616 has 256 divisors, whose sum is σ = 47306669760. Its totient is φ = 4426039296.

The previous prime is 15451103609. The next prime is 15451103617. The reversal of 15451103616 is 61630115451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15451103617) 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, 8230870 + ... + 8232746.

Almost surely, 2^15451103616 is an apocalyptic number.

15451103616 is a gapful number since it is divisible by the number (16) 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 15451103616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23653334880).

15451103616 is an abundant number, since it is smaller than the sum of its proper divisors (31855566144).

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

15451103616 is a wasteful number, since it uses less digits than its factorization.

15451103616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The spelling of 15451103616 in words is "fifteen billion, four hundred fifty-one million, one hundred three thousand, six hundred sixteen".