100402561406 has 16 divisors (see below), whose sum is σ = 173273839200. Its totient is φ = 42740878560.

The previous prime is 100402561379. The next prime is 100402561423. The reversal of 100402561406 is 604165204001.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24063725 + ... + 24067896.

It is an arithmetic number, because the mean of its divisors is an integer number (10829614950).

Almost surely, 2^100402561406 is an apocalyptic number.

100402561406 is a deficient number, since it is larger than the sum of its proper divisors (72871277794).

100402561406 is a wasteful number, since it uses less digits than its factorization.

100402561406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48131779.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 100402561406 its reverse (604165204001), we get a palindrome (704567765407).

The spelling of 100402561406 in words is "one hundred billion, four hundred two million, five hundred sixty-one thousand, four hundred six".