20342318980516 has 81 divisors (see below), whose sum is σ = 39520562362659. Its totient is φ = 9157603478400.

The previous prime is 20342318980439. The next prime is 20342318980561. The reversal of 20342318980516 is 61508981324302.

The square root of 20342318980516 is 4510246.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 13549540140900 + 6792778839616 = 3680970^2 + 2606296^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 4807920121 + ... + 4807924351.

Almost surely, 2^{20342318980516} is an apocalyptic number.

20342318980516 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20342318980516 is the 4510246-th square number.

It is an amenable number.

20342318980516 is a deficient number, since it is larger than the sum of its proper divisors (19178243382143).

20342318980516 is an frugal number, since it uses more digits than its factorization.

20342318980516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8574 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 20342318980516 in words is "twenty trillion, three hundred forty-two billion, three hundred eighteen million, nine hundred eighty thousand, five hundred sixteen".