20602624402140 has 192 divisors, whose sum is σ = 63357741941760. Its totient is φ = 4960784424960.

The previous prime is 20602624402127. The next prime is 20602624402147. The reversal of 20602624402140 is 4120442620602.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602624402147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 268648321 + ... + 268724999.

It is an arithmetic number, because the mean of its divisors is an integer number (329988239280).

Almost surely, 2^{20602624402140} is an apocalyptic number.

20602624402140 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 20602624402140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31678870970880).

20602624402140 is an abundant number, since it is smaller than the sum of its proper divisors (42755117539620).

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

20602624402140 is a wasteful number, since it uses less digits than its factorization.

20602624402140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79452 (or 79450 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

The spelling of 20602624402140 in words is "twenty trillion, six hundred two billion, six hundred twenty-four million, four hundred two thousand, one hundred forty".