11661762425201 has 4 divisors (see below), whose sum is σ = 13327728485952. Its totient is φ = 9995796364452.

The previous prime is 11661762425197. The next prime is 11661762425219. The reversal of 11661762425201 is 10252426716611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11661762425201 - 2² = 11661762425197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11661762025201) 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, 832983030365 + ... + 832983030378.

It is an arithmetic number, because the mean of its divisors is an integer number (3331932121488).

Almost surely, 2^{11661762425201} is an apocalyptic number.

It is an amenable number.

11661762425201 is a deficient number, since it is larger than the sum of its proper divisors (1665966060751).

11661762425201 is an equidigital number, since it uses as much as digits as its factorization.

11661762425201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665966060750.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 11661762425201 in words is "eleven trillion, six hundred sixty-one billion, seven hundred sixty-two million, four hundred twenty-five thousand, two hundred one".