20520722224704 has 112 divisors (see below), whose sum is σ = 58473106368768. Its totient is φ = 6313830555648.

The previous prime is 20520722224649. The next prime is 20520722224727. The reversal of 20520722224704 is 40742222702502.

It is a super-2 number, since 2×20520722224704² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73060024 + ... + 73340360.

It is an arithmetic number, because the mean of its divisors is an integer number (522081306864).

Almost surely, 2^{20520722224704} is an apocalyptic number.

20520722224704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20520722224704 is an abundant number, since it is smaller than the sum of its proper divisors (37952384144064).

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

20520722224704 is a wasteful number, since it uses less digits than its factorization.

20520722224704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309692 (or 309682 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 39.

The spelling of 20520722224704 in words is "twenty trillion, five hundred twenty billion, seven hundred twenty-two million, two hundred twenty-four thousand, seven hundred four".