20772420000 has 120 divisors (see below), whose sum is σ = 68137888896. Its totient is φ = 5539296000.

The previous prime is 20772419999. The next prime is 20772420013. The reversal of 20772420000 is 2427702.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 113104 + ... + 233103.

Almost surely, 2^20772420000 is an apocalyptic number.

20772420000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20772420000 is an abundant number, since it is smaller than the sum of its proper divisors (47365468896).

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

20772420000 is an equidigital number, since it uses as much as digits as its factorization.

20772420000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346240 (or 346217 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

Adding to 20772420000 its reverse (2427702), we get a palindrome (20774847702).

The spelling of 20772420000 in words is "twenty billion, seven hundred seventy-two million, four hundred twenty thousand".