20237389968 has 160 divisors (see below), whose sum is σ = 56792900736. Its totient is φ = 6184894464.

The previous prime is 20237389967. The next prime is 20237389969. The reversal of 20237389968 is 86998373202.

It is an interprime number because it is at equal distance from previous prime (20237389967) and next prime (20237389969).

It is not an unprimeable number, because it can be changed into a prime (20237389967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23613796 + ... + 23614652.

Almost surely, 2^20237389968 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 20237389968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28396450368).

20237389968 is an abundant number, since it is smaller than the sum of its proper divisors (36555510768).

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

20237389968 is a wasteful number, since it uses less digits than its factorization.

20237389968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 20237389968 in words is "twenty billion, two hundred thirty-seven million, three hundred eighty-nine thousand, nine hundred sixty-eight".