15151524420 has 96 divisors (see below), whose sum is σ = 44498216448. Its totient is φ = 3847537152.

The previous prime is 15151524403. The next prime is 15151524433. The reversal of 15151524420 is 2442515151.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31734 + ... + 176946.

It is an arithmetic number, because the mean of its divisors is an integer number (463523088).

Almost surely, 2^15151524420 is an apocalyptic number.

15151524420 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 15151524420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22249108224).

15151524420 is an abundant number, since it is smaller than the sum of its proper divisors (29346692028).

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

15151524420 is a wasteful number, since it uses less digits than its factorization.

15151524420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145309 (or 145307 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 15151524420 in words is "fifteen billion, one hundred fifty-one million, five hundred twenty-four thousand, four hundred twenty".