15161505020 has 48 divisors (see below), whose sum is σ = 32684940288. Its totient is φ = 5904413760.

The previous prime is 15161505019. The next prime is 15161505083. The reversal of 15161505020 is 2050516151.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239117 + ... + 295803.

It is an arithmetic number, because the mean of its divisors is an integer number (680936256).

Almost surely, 2^15161505020 is an apocalyptic number.

15161505020 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 15161505020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16342470144).

15161505020 is an abundant number, since it is smaller than the sum of its proper divisors (17523435268).

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

15161505020 is a wasteful number, since it uses less digits than its factorization.

15161505020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57050 (or 57048 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

The spelling of 15161505020 in words is "fifteen billion, one hundred sixty-one million, five hundred five thousand, twenty".