4020621646032 has 200 divisors, whose sum is σ = 12152786279040. Its totient is φ = 1280882592000.

The previous prime is 4020621646007. The next prime is 4020621646051. The reversal of 4020621646032 is 2306461260204.

4020621646032 is a `hidden beast` number, since 4 + 0 + 2 + 0 + 6 + 2 + 1 + 646 + 0 + 3 + 2 = 666.

4020621646032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36579157 + ... + 36688907.

Almost surely, 2^{4020621646032} 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 4020621646032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6076393139520).

4020621646032 is an abundant number, since it is smaller than the sum of its proper divisors (8132164633008).

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

4020621646032 is a wasteful number, since it uses less digits than its factorization.

4020621646032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111023 (or 111008 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 4020621646032 in words is "four trillion, twenty billion, six hundred twenty-one million, six hundred forty-six thousand, thirty-two".