20128150504 has 64 divisors (see below), whose sum is σ = 47111178240. Its totient is φ = 7832410560.

The previous prime is 20128150457. The next prime is 20128150513. The reversal of 20128150504 is 40505182102.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 487117 + ... + 526819.

It is an arithmetic number, because the mean of its divisors is an integer number (736112160).

Almost surely, 2^20128150504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20128150504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23555589120).

20128150504 is an abundant number, since it is smaller than the sum of its proper divisors (26983027736).

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

20128150504 is a wasteful number, since it uses less digits than its factorization.

20128150504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40550 (or 40546 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The spelling of 20128150504 in words is "twenty billion, one hundred twenty-eight million, one hundred fifty thousand, five hundred four".