20619677502336 has 256 divisors, whose sum is σ = 61468677204480. Its totient is φ = 6070966886400.

The previous prime is 20619677502329. The next prime is 20619677502349. The reversal of 20619677502336 is 63320577691602.

It is a super-2 number, since 2×20619677502336² (a number of 27 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22611706 + ... + 23505926.

It is an arithmetic number, because the mean of its divisors is an integer number (240112020330).

Almost surely, 2^{20619677502336} 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 20619677502336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30734338602240).

20619677502336 is an abundant number, since it is smaller than the sum of its proper divisors (40848999702144).

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

20619677502336 is a wasteful number, since it uses less digits than its factorization.

20619677502336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894405 (or 894393 counting only the distinct ones).

The product of its (nonzero) digits is 17146080, while the sum is 57.

The spelling of 20619677502336 in words is "twenty trillion, six hundred nineteen billion, six hundred seventy-seven million, five hundred two thousand, three hundred thirty-six".