15151420320 has 96 divisors (see below), whose sum is σ = 47774059200. Its totient is φ = 4036392960.

The previous prime is 15151420261. The next prime is 15151420343. The reversal of 15151420320 is 2302415151.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 488475 + ... + 518565.

It is an arithmetic number, because the mean of its divisors is an integer number (497646450).

Almost surely, 2^15151420320 is an apocalyptic number.

15151420320 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 15151420320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23887029600).

15151420320 is an abundant number, since it is smaller than the sum of its proper divisors (32622638880).

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

15151420320 is a wasteful number, since it uses less digits than its factorization.

15151420320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31158 (or 31150 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15151420320 its reverse (2302415151), we get a palindrome (17453835471).

The spelling of 15151420320 in words is "fifteen billion, one hundred fifty-one million, four hundred twenty thousand, three hundred twenty".