20361029476680 has 768 divisors, whose sum is σ = 73031632128000. Its totient is φ = 5090790684672.

The previous prime is 20361029476643. The next prime is 20361029476693. The reversal of 20361029476680 is 8667492016302.

20361029476680 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 102 + 9 + 476 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 4999023124 + ... + 4999027196.

It is an arithmetic number, because the mean of its divisors is an integer number (95093271000).

Almost surely, 2^{20361029476680} is an apocalyptic number.

20361029476680 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 20361029476680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36515816064000).

20361029476680 is an abundant number, since it is smaller than the sum of its proper divisors (52670602651320).

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

20361029476680 is a wasteful number, since it uses less digits than its factorization.

20361029476680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4560 (or 4544 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 54.

The spelling of 20361029476680 in words is "twenty trillion, three hundred sixty-one billion, twenty-nine million, four hundred seventy-six thousand, six hundred eighty".