15858196480 has 448 divisors, whose sum is σ = 47560504320. Its totient is φ = 4954521600.

The previous prime is 15858196421. The next prime is 15858196489. The reversal of 15858196480 is 8469185851.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15858196489) 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, 223354845 + ... + 223354915.

It is an arithmetic number, because the mean of its divisors is an integer number (106161840).

Almost surely, 2^15858196480 is an apocalyptic number.

15858196480 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 15858196480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23780252160).

15858196480 is an abundant number, since it is smaller than the sum of its proper divisors (31702307840).

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

15858196480 is an equidigital number, since it uses as much as digits as its factorization.

15858196480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 55.

The spelling of 15858196480 in words is "fifteen billion, eight hundred fifty-eight million, one hundred ninety-six thousand, four hundred eighty".