106405203632402 has 4 divisors (see below), whose sum is σ = 159607805448606. Its totient is φ = 53202601816200.

The previous prime is 106405203632383. The next prime is 106405203632417. The reversal of 106405203632402 is 204236302504601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 56748785846041 + 49656417786361 = 7533179^2 + 7046731^2 .

It is a super-2 number, since 2×106405203632402² (a number of 29 digits) contains 22 as substring.

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 as a sum of consecutive naturals, namely, 26601300908099 + ... + 26601300908102.

Almost surely, 2^{106405203632402} is an apocalyptic number.

106405203632402 is a deficient number, since it is larger than the sum of its proper divisors (53202601816204).

106405203632402 is an equidigital number, since it uses as much as digits as its factorization.

106405203632402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53202601816203.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 106405203632402 in words is "one hundred six trillion, four hundred five billion, two hundred three million, six hundred thirty-two thousand, four hundred two".