20401858670592 has 416 divisors, whose sum is σ = 64931978280960. Its totient is φ = 5570554429440.

The previous prime is 20401858670563. The next prime is 20401858670593. The reversal of 20401858670592 is 29507685810402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401858670593) by changing a digit.

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, 2490761217 + ... + 2490769407.

Almost surely, 2^{20401858670592} 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 20401858670592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32465989140480).

20401858670592 is an abundant number, since it is smaller than the sum of its proper divisors (44530119610368).

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

20401858670592 is a wasteful number, since it uses less digits than its factorization.

20401858670592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9507 (or 9485 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 20401858670592 in words is "twenty trillion, four hundred one billion, eight hundred fifty-eight million, six hundred seventy thousand, five hundred ninety-two".