20415235950 has 240 divisors, whose sum is σ = 57848162064. Its totient is φ = 5337446400.

The previous prime is 20415235931. The next prime is 20415235993. The reversal of 20415235950 is 5953251402.

It is a happy number.

20415235950 is a `hidden beast` number, since 2 + 0 + 41 + 5 + 23 + 595 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 61677285 + ... + 61677615.

Almost surely, 2^20415235950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20415235950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28924081032).

20415235950 is an abundant number, since it is smaller than the sum of its proper divisors (37432926114).

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

20415235950 is a wasteful number, since it uses less digits than its factorization.

20415235950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 20415235950 in words is "twenty billion, four hundred fifteen million, two hundred thirty-five thousand, nine hundred fifty".