30621126040056 has 96 divisors (see below), whose sum is σ = 83492985794400. Its totient is φ = 10138118265600.

The previous prime is 30621126039971. The next prime is 30621126040069. The reversal of 30621126040056 is 65004062112603.

30621126040056 is a `hidden beast` number, since 3 + 0 + 621 + 1 + 26 + 0 + 4 + 0 + 0 + 5 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30621126040056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14664490 + ... + 16621958.

It is an arithmetic number, because the mean of its divisors is an integer number (869718602025).

Almost surely, 2^{30621126040056} is an apocalyptic number.

30621126040056 is a gapful number since it is divisible by the number (36) 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 30621126040056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41746492897200).

30621126040056 is an abundant number, since it is smaller than the sum of its proper divisors (52871859754344).

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

30621126040056 is a wasteful number, since it uses less digits than its factorization.

30621126040056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958949 (or 1958942 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 30621126040056 its reverse (65004062112603), we get a palindrome (95625188152659).

The spelling of 30621126040056 in words is "thirty trillion, six hundred twenty-one billion, one hundred twenty-six million, forty thousand, fifty-six".