20154350000 has 240 divisors, whose sum is σ = 52361461152. Its totient is φ = 7488000000.

The previous prime is 20154349993. The next prime is 20154350011. The reversal of 20154350000 is 5345102.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 111349910 + ... + 111350090.

Almost surely, 2^20154350000 is an apocalyptic number.

20154350000 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 20154350000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26180730576).

20154350000 is an abundant number, since it is smaller than the sum of its proper divisors (32207111152).

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

20154350000 is a wasteful number, since it uses less digits than its factorization.

20154350000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 336 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 20154350000 its reverse (5345102), we get a palindrome (20159695102).

The spelling of 20154350000 in words is "twenty billion, one hundred fifty-four million, three hundred fifty thousand".