20196239952 has 40 divisors (see below), whose sum is σ = 59626995136. Its totient is φ = 5770354176.

The previous prime is 20196239929. The next prime is 20196239969. The reversal of 20196239952 is 25993269102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30053593 + ... + 30054264.

Almost surely, 2^20196239952 is an apocalyptic number.

It is an amenable number.

20196239952 is an abundant number, since it is smaller than the sum of its proper divisors (39430755184).

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

20196239952 is a wasteful number, since it uses less digits than its factorization.

20196239952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60107875 (or 60107869 counting only the distinct ones).

The product of its (nonzero) digits is 524880, while the sum is 48.

The spelling of 20196239952 in words is "twenty billion, one hundred ninety-six million, two hundred thirty-nine thousand, nine hundred fifty-two".