20469080736720 has 640 divisors, whose sum is σ = 87957901762560. Its totient is φ = 4250603520000.

The previous prime is 20469080736703. The next prime is 20469080736737. The reversal of 20469080736720 is 2763708096402.

20469080736720 is a `hidden beast` number, since 2 + 0 + 469 + 0 + 80 + 7 + 36 + 72 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20469080736703) and next prime (20469080736737).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 266239885 + ... + 266316755.

It is an arithmetic number, because the mean of its divisors is an integer number (137434221504).

Almost surely, 2^{20469080736720} is an apocalyptic number.

20469080736720 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 20469080736720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43978950881280).

20469080736720 is an abundant number, since it is smaller than the sum of its proper divisors (67488821025840).

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

20469080736720 is a wasteful number, since it uses less digits than its factorization.

20469080736720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78512 (or 78500 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 20469080736720 in words is "twenty trillion, four hundred sixty-nine billion, eighty million, seven hundred thirty-six thousand, seven hundred twenty".