1641630130440 has 32 divisors (see below), whose sum is σ = 4924890391680. Its totient is φ = 437768034752.

The previous prime is 1641630130417. The next prime is 1641630130477. The reversal of 1641630130440 is 440310361461.

It is a super-3 number, since 3×1641630130440³ (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6840125424 + ... + 6840125663.

It is an arithmetic number, because the mean of its divisors is an integer number (153902824740).

Almost surely, 2^{1641630130440} is an apocalyptic number.

1641630130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1641630130440 is an abundant number, since it is smaller than the sum of its proper divisors (3283260261240).

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

1641630130440 is a wasteful number, since it uses less digits than its factorization.

1641630130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13680251101 (or 13680251097 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 1641630130440 in words is "one trillion, six hundred forty-one billion, six hundred thirty million, one hundred thirty thousand, four hundred forty".