23028161520 has 960 divisors, whose sum is σ = 95297900544. Its totient is φ = 4551966720.

The previous prime is 23028161509. The next prime is 23028161609. The reversal of 23028161520 is 2516182032.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 203788984 + ... + 203789096.

Almost surely, 2^23028161520 is an apocalyptic number.

23028161520 is a gapful number since it is divisible by the number (20) 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 23028161520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47648950272).

23028161520 is an abundant number, since it is smaller than the sum of its proper divisors (72269739024).

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

23028161520 is a wasteful number, since it uses less digits than its factorization.

23028161520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 23028161520 in words is "twenty-three billion, twenty-eight million, one hundred sixty-one thousand, five hundred twenty".