20205720496522 has 32 divisors (see below), whose sum is σ = 33123469414464. Its totient is φ = 9167874710400.

The previous prime is 20205720496513. The next prime is 20205720496537. The reversal of 20205720496522 is 22569402750202.

It is a super-2 number, since 2×20205720496522² (a number of 27 digits) contains 22 as substring.

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, 462171808 + ... + 462215524.

It is an arithmetic number, because the mean of its divisors is an integer number (1035108419202).

Almost surely, 2^{20205720496522} is an apocalyptic number.

20205720496522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20205720496522 is a deficient number, since it is larger than the sum of its proper divisors (12917748917942).

20205720496522 is a wasteful number, since it uses less digits than its factorization.

20205720496522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81094.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 20205720496522 in words is "twenty trillion, two hundred five billion, seven hundred twenty million, four hundred ninety-six thousand, five hundred twenty-two".