210210155140 has 48 divisors (see below), whose sum is σ = 442984163328. Its totient is φ = 83790581504.

The previous prime is 210210155117. The next prime is 210210155161. The reversal of 210210155140 is 41551012012.

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, 9126879 + ... + 9149881.

It is an arithmetic number, because the mean of its divisors is an integer number (9228836736).

Almost surely, 2^210210155140 is an apocalyptic number.

210210155140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210210155140 is an abundant number, since it is smaller than the sum of its proper divisors (232774008188).

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

210210155140 is a wasteful number, since it uses less digits than its factorization.

210210155140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24588 (or 24586 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 210210155140 its reverse (41551012012), we get a palindrome (251761167152).

The spelling of 210210155140 in words is "two hundred ten billion, two hundred ten million, one hundred fifty-five thousand, one hundred forty".