20612344900 has 135 divisors (see below), whose sum is σ = 52359179831. Its totient is φ = 7042969920.

The previous prime is 20612344853. The next prime is 20612344931. The reversal of 20612344900 is 944321602.

It is a happy number.

The square root of 20612344900 is 143570.

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 3264293956 + 17348050944 = 57134^2 + 131712^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 70349154 + ... + 70349446.

Almost surely, 2^20612344900 is an apocalyptic number.

20612344900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20612344900 is the 143570-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20612344900

20612344900 is an abundant number, since it is smaller than the sum of its proper divisors (31746834931).

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

20612344900 is an frugal number, since it uses more digits than its factorization.

20612344900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 20612344900 in words is "twenty billion, six hundred twelve million, three hundred forty-four thousand, nine hundred".