20377562500 has 63 divisors (see below), whose sum is σ = 44653549521. Its totient is φ = 8136750000.

The previous prime is 20377562489. The next prime is 20377562507. The reversal of 20377562500 is 526577302.

The square root of 20377562500 is 142750.

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

It can be written as a sum of positive squares in 3 ways, for example, as 17852700996 + 2524861504 = 133614^2 + 50248^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20377562500.

It is not an unprimeable number, because it can be changed into a prime (20377562507) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 35687215 + ... + 35687785.

Almost surely, 2^20377562500 is an apocalyptic number.

20377562500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

20377562500 is the 142750-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20377562500

20377562500 is an abundant number, since it is smaller than the sum of its proper divisors (24275987021).

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

20377562500 is an frugal number, since it uses more digits than its factorization.

20377562500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The spelling of 20377562500 in words is "twenty billion, three hundred seventy-seven million, five hundred sixty-two thousand, five hundred".