210803480640 has 112 divisors (see below), whose sum is σ = 743667864960. Its totient is φ = 56214259200.

The previous prime is 210803480621. The next prime is 210803480651. The reversal of 210803480640 is 46084308012.

210803480640 is a `hidden beast` number, since 2 + 1 + 0 + 8 + 0 + 3 + 4 + 8 + 0 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 210803480595 and 210803480604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12190636 + ... + 12207915.

Almost surely, 2^210803480640 is an apocalyptic number.

210803480640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210803480640 is an abundant number, since it is smaller than the sum of its proper divisors (532864384320).

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

210803480640 is a wasteful number, since it uses less digits than its factorization.

210803480640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24398577 (or 24398561 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

Adding to 210803480640 its reverse (46084308012), we get a palindrome (256887788652).

The spelling of 210803480640 in words is "two hundred ten billion, eight hundred three million, four hundred eighty thousand, six hundred forty".