106721940398 has 4 divisors (see below), whose sum is σ = 160082910600. Its totient is φ = 53360970198.

The previous prime is 106721940239. The next prime is 106721940433. The reversal of 106721940398 is 893049127601.

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

It is a super-2 number, since 2×106721940398² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26680485098 + ... + 26680485101.

It is an arithmetic number, because the mean of its divisors is an integer number (40020727650).

Almost surely, 2^106721940398 is an apocalyptic number.

106721940398 is a deficient number, since it is larger than the sum of its proper divisors (53360970202).

106721940398 is an equidigital number, since it uses as much as digits as its factorization.

106721940398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53360970201.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 106721940398 in words is "one hundred six billion, seven hundred twenty-one million, nine hundred forty thousand, three hundred ninety-eight".