20600318421504 has 480 divisors, whose sum is σ = 62487429548544. Its totient is φ = 6774406410240.

The previous prime is 20600318421467. The next prime is 20600318421533. The reversal of 20600318421504 is 40512481300602.

It is a happy number.

20600318421504 is a `hidden beast` number, since 2 + 0 + 600 + 3 + 1 + 8 + 42 + 1 + 5 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13455465219 + ... + 13455466749.

Almost surely, 2^{20600318421504} is an apocalyptic number.

20600318421504 is a gapful number since it is divisible by the number (24) 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 20600318421504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31243714774272).

20600318421504 is an abundant number, since it is smaller than the sum of its proper divisors (41887111127040).

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

20600318421504 is an equidigital number, since it uses as much as digits as its factorization.

20600318421504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950 (or 2922 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20600318421504 in words is "twenty trillion, six hundred billion, three hundred eighteen million, four hundred twenty-one thousand, five hundred four".