20539030650 has 48 divisors (see below), whose sum is σ = 50960556768. Its totient is φ = 5474520000.

The previous prime is 20539030643. The next prime is 20539030657. The reversal of 20539030650 is 5603093502.

It is an interprime number because it is at equal distance from previous prime (20539030643) and next prime (20539030657).

It is not an unprimeable number, because it can be changed into a prime (20539030657) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 302325 + ... + 363975.

It is an arithmetic number, because the mean of its divisors is an integer number (1061678266).

Almost surely, 2^20539030650 is an apocalyptic number.

20539030650 is an abundant number, since it is smaller than the sum of its proper divisors (30421526118).

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

20539030650 is a wasteful number, since it uses less digits than its factorization.

20539030650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63887 (or 63882 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 33.

The spelling of 20539030650 in words is "twenty billion, five hundred thirty-nine million, thirty thousand, six hundred fifty".