20370739536 has 240 divisors, whose sum is σ = 67164998784. Its totient is φ = 5641767936.

The previous prime is 20370739531. The next prime is 20370739541. The reversal of 20370739536 is 63593707302.

It is an interprime number because it is at equal distance from previous prime (20370739531) and next prime (20370739541).

It is a junction number, because it is equal to n+sod(n) for n = 20370739491 and 20370739500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370739531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11821971 + ... + 11823693.

Almost surely, 2^20370739536 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 20370739536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33582499392).

20370739536 is an abundant number, since it is smaller than the sum of its proper divisors (46794259248).

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

20370739536 is a wasteful number, since it uses less digits than its factorization.

20370739536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2089 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 45.

The spelling of 20370739536 in words is "twenty billion, three hundred seventy million, seven hundred thirty-nine thousand, five hundred thirty-six".