20147027652 has 144 divisors (see below), whose sum is σ = 54110714112. Its totient is φ = 6307614720.

The previous prime is 20147027609. The next prime is 20147027683. The reversal of 20147027652 is 25672074102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11002377 + ... + 11004207.

It is an arithmetic number, because the mean of its divisors is an integer number (375768848).

Almost surely, 2^20147027652 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20147027652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27055357056).

20147027652 is an abundant number, since it is smaller than the sum of its proper divisors (33963686460).

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

20147027652 is a wasteful number, since it uses less digits than its factorization.

20147027652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The spelling of 20147027652 in words is "twenty billion, one hundred forty-seven million, twenty-seven thousand, six hundred fifty-two".