20536498080 has 768 divisors, whose sum is σ = 89336217600. Its totient is φ = 4299816960.

The previous prime is 20536498069. The next prime is 20536498109. The reversal of 20536498080 is 8089463502.

20536498080 is a `hidden beast` number, since 20 + 536 + 4 + 98 + 0 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17810784 + ... + 17811936.

It is an arithmetic number, because the mean of its divisors is an integer number (116323200).

Almost surely, 2^20536498080 is an apocalyptic number.

20536498080 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 20536498080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44668108800).

20536498080 is an abundant number, since it is smaller than the sum of its proper divisors (68799719520).

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

20536498080 is a wasteful number, since it uses less digits than its factorization.

20536498080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 20536498080 in words is "twenty billion, five hundred thirty-six million, four hundred ninety-eight thousand, eighty".