20046463320 has 128 divisors (see below), whose sum is σ = 64835850240. Its totient is φ = 4929154560.

The previous prime is 20046463319. The next prime is 20046463357. The reversal of 20046463320 is 2336464002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1539477 + ... + 1552443.

It is an arithmetic number, because the mean of its divisors is an integer number (506530080).

Almost surely, 2^20046463320 is an apocalyptic number.

20046463320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20046463320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32417925120).

20046463320 is an abundant number, since it is smaller than the sum of its proper divisors (44789386920).

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

20046463320 is a wasteful number, since it uses less digits than its factorization.

20046463320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13985 (or 13981 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 20046463320 in words is "twenty billion, forty-six million, four hundred sixty-three thousand, three hundred twenty".