42100402660 has 48 divisors (see below), whose sum is σ = 90232225776. Its totient is φ = 16494313472.

The previous prime is 42100402651. The next prime is 42100402697. The reversal of 42100402660 is 6620400124.

It can be written as a sum of positive squares in 8 ways, for example, as 1959478756 + 40140923904 = 44266^2 + 200352^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595092 + ... + 662068.

It is an arithmetic number, because the mean of its divisors is an integer number (1879838037).

Almost surely, 2^42100402660 is an apocalyptic number.

It is an amenable number.

42100402660 is an abundant number, since it is smaller than the sum of its proper divisors (48131823116).

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

42100402660 is a wasteful number, since it uses less digits than its factorization.

42100402660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67632 (or 67630 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 42100402660 its reverse (6620400124), we get a palindrome (48720802784).

The spelling of 42100402660 in words is "forty-two billion, one hundred million, four hundred two thousand, six hundred sixty".