10401996777901 has 2 divisors, whose sum is σ = 10401996777902. Its totient is φ = 10401996777900.

The previous prime is 10401996777883. The next prime is 10401996777947. The reversal of 10401996777901 is 10977769910401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8651681007876 + 1750315770025 = 2941374^2 + 1322995^2 .

It is a cyclic number.

It is not a de Polignac number, because 10401996777901 - 2¹³ = 10401996769709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10401996777901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10401996777101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5200998388950 + 5200998388951.

It is an arithmetic number, because the mean of its divisors is an integer number (5200998388951).

Almost surely, 2^{10401996777901} is an apocalyptic number.

It is an amenable number.

10401996777901 is a deficient number, since it is larger than the sum of its proper divisors (1).

10401996777901 is an equidigital number, since it uses as much as digits as its factorization.

10401996777901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6001128, while the sum is 61.

The spelling of 10401996777901 in words is "ten trillion, four hundred one billion, nine hundred ninety-six million, seven hundred seventy-seven thousand, nine hundred one".