20245415100 has 36 divisors (see below), whose sum is σ = 58576735224. Its totient is φ = 5398777280.

The previous prime is 20245415089. The next prime is 20245415119. The reversal of 20245415100 is 151454202.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 33742059 + ... + 33742658.

It is an arithmetic number, because the mean of its divisors is an integer number (1627131534).

Almost surely, 2^20245415100 is an apocalyptic number.

20245415100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20245415100 is an abundant number, since it is smaller than the sum of its proper divisors (38331320124).

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

20245415100 is a wasteful number, since it uses less digits than its factorization.

20245415100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67484734 (or 67484727 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 20245415100 its reverse (151454202), we get a palindrome (20396869302).

The spelling of 20245415100 in words is "twenty billion, two hundred forty-five million, four hundred fifteen thousand, one hundred".