20202255619 has 12 divisors (see below), whose sum is σ = 25308321024. Its totient is φ = 15984201744.

The previous prime is 20202255617. The next prime is 20202255629. The reversal of 20202255619 is 91655220202.

It is not a de Polignac number, because 20202255619 - 2¹ = 20202255617 is a prime.

It is a super-2 number, since 2×20202255619² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20202255617) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15856707 + ... + 15857980.

It is an arithmetic number, because the mean of its divisors is an integer number (2109026752).

Almost surely, 2^20202255619 is an apocalyptic number.

20202255619 is a deficient number, since it is larger than the sum of its proper divisors (5106065405).

20202255619 is a wasteful number, since it uses less digits than its factorization.

20202255619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31714714 (or 31714707 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 20202255619 in words is "twenty billion, two hundred two million, two hundred fifty-five thousand, six hundred nineteen".