20057662455450 has 96 divisors (see below), whose sum is σ = 50488074318336. Its totient is φ = 5268603130560.

The previous prime is 20057662455431. The next prime is 20057662455469. The reversal of 20057662455450 is 5455426675002.

It is an interprime number because it is at equal distance from previous prime (20057662455431) and next prime (20057662455469).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20057662455393 and 20057662455402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 253652619 + ... + 253731681.

It is an arithmetic number, because the mean of its divisors is an integer number (525917440816).

Almost surely, 2^{20057662455450} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20057662455450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25244037159168).

20057662455450 is an abundant number, since it is smaller than the sum of its proper divisors (30430411862886).

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

20057662455450 is a wasteful number, since it uses less digits than its factorization.

20057662455450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104388 (or 104383 counting only the distinct ones).

The product of its (nonzero) digits is 10080000, while the sum is 51.

The spelling of 20057662455450 in words is "twenty trillion, fifty-seven billion, six hundred sixty-two million, four hundred fifty-five thousand, four hundred fifty".