1641720510210 has 32 divisors (see below), whose sum is σ = 4298322791232. Its totient is φ = 397992850880.

The previous prime is 1641720510197. The next prime is 1641720510253. The reversal of 1641720510210 is 120150271461.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2487454989 + ... + 2487455648.

It is an arithmetic number, because the mean of its divisors is an integer number (134322587226).

Almost surely, 2^{1641720510210} is an apocalyptic number.

1641720510210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1641720510210 is an abundant number, since it is smaller than the sum of its proper divisors (2656602281022).

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

1641720510210 is a wasteful number, since it uses less digits than its factorization.

1641720510210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4974910658.

The product of its (nonzero) digits is 3360, while the sum is 30.

Adding to 1641720510210 its reverse (120150271461), we get a palindrome (1761870781671).

The spelling of 1641720510210 in words is "one trillion, six hundred forty-one billion, seven hundred twenty million, five hundred ten thousand, two hundred ten".