20351362080 has 288 divisors, whose sum is σ = 78499834560. Its totient is φ = 4406814720.

The previous prime is 20351362069. The next prime is 20351362093. The reversal of 20351362080 is 8026315302.

It is a super-2 number, since 2×20351362080² (a number of 21 digits) contains 22 as substring.

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

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, 424110 + ... + 469650.

It is an arithmetic number, because the mean of its divisors is an integer number (272568870).

Almost surely, 2^20351362080 is an apocalyptic number.

20351362080 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 20351362080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39249917280).

20351362080 is an abundant number, since it is smaller than the sum of its proper divisors (58148472480).

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

20351362080 is a wasteful number, since it uses less digits than its factorization.

20351362080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45592 (or 45577 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 20351362080 its reverse (8026315302), we get a palindrome (28377677382).

The spelling of 20351362080 in words is "twenty billion, three hundred fifty-one million, three hundred sixty-two thousand, eighty".