1641620504130 has 64 divisors (see below), whose sum is σ = 4006387440000. Its totient is φ = 430438095360.

The previous prime is 1641620504107. The next prime is 1641620504137. The reversal of 1641620504130 is 314050261461.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1641620504091 and 1641620504100.

It is not an unprimeable number, because it can be changed into a prime (1641620504137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1487755 + ... + 2344494.

It is an arithmetic number, because the mean of its divisors is an integer number (62599803750).

Almost surely, 2^{1641620504130} is an apocalyptic number.

1641620504130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1641620504130 is an abundant number, since it is smaller than the sum of its proper divisors (2364766935870).

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

1641620504130 is a wasteful number, since it uses less digits than its factorization.

1641620504130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3832499.

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 1641620504130 its reverse (314050261461), we get a palindrome (1955670765591).

The spelling of 1641620504130 in words is "one trillion, six hundred forty-one billion, six hundred twenty million, five hundred four thousand, one hundred thirty".