126016197803 has 4 divisors (see below), whose sum is σ = 126017889408. Its totient is φ = 126014506200.

The previous prime is 126016197787. The next prime is 126016197817. The reversal of 126016197803 is 308791610621.

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

It is a cyclic number.

It is not a de Polignac number, because 126016197803 - 2⁴ = 126016197787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126016127803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728651 + ... + 884852.

It is an arithmetic number, because the mean of its divisors is an integer number (31504472352).

Almost surely, 2^126016197803 is an apocalyptic number.

126016197803 is a deficient number, since it is larger than the sum of its proper divisors (1691605).

126016197803 is an equidigital number, since it uses as much as digits as its factorization.

126016197803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691604.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 126016197803 in words is "one hundred twenty-six billion, sixteen million, one hundred ninety-seven thousand, eight hundred three".