11650663571851 has 8 divisors (see below), whose sum is σ = 12065218707600. Its totient is φ = 11236962310560.

The previous prime is 11650663571839. The next prime is 11650663571857. The reversal of 11650663571851 is 15817536605611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11650663571851 - 2²⁵ = 11650630017419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11650663571792 and 11650663571801.

It is not an unprimeable number, because it can be changed into a prime (11650663571857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213440841 + ... + 213495418.

It is an arithmetic number, because the mean of its divisors is an integer number (1508152338450).

Almost surely, 2^{11650663571851} is an apocalyptic number.

11650663571851 is a deficient number, since it is larger than the sum of its proper divisors (414555135749).

11650663571851 is an equidigital number, since it uses as much as digits as its factorization.

11650663571851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426937229.

The product of its (nonzero) digits is 4536000, while the sum is 55.

The spelling of 11650663571851 in words is "eleven trillion, six hundred fifty billion, six hundred sixty-three million, five hundred seventy-one thousand, eight hundred fifty-one".