20033661480 has 512 divisors, whose sum is σ = 74052403200. Its totient is φ = 4237516800.

The previous prime is 20033661413. The next prime is 20033661497. The reversal of 20033661480 is 8416633002.

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, 104888185 + ... + 104888375.

It is an arithmetic number, because the mean of its divisors is an integer number (144633600).

Almost surely, 2^20033661480 is an apocalyptic number.

20033661480 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 20033661480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37026201600).

20033661480 is an abundant number, since it is smaller than the sum of its proper divisors (54018741720).

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

20033661480 is a wasteful number, since it uses less digits than its factorization.

20033661480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 20033661480 in words is "twenty billion, thirty-three million, six hundred sixty-one thousand, four hundred eighty".