131635216707 has 4 divisors (see below), whose sum is σ = 175513622280. Its totient is φ = 87756811136.

The previous prime is 131635216667. The next prime is 131635216717. The reversal of 131635216707 is 707612536131.

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 131635216707 - 2¹⁰ = 131635215683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131635216717) 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, 21939202782 + ... + 21939202787.

It is an arithmetic number, because the mean of its divisors is an integer number (43878405570).

Almost surely, 2^131635216707 is an apocalyptic number.

131635216707 is a deficient number, since it is larger than the sum of its proper divisors (43878405573).

131635216707 is an equidigital number, since it uses as much as digits as its factorization.

131635216707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43878405572.

The product of its (nonzero) digits is 158760, while the sum is 42.

The spelling of 131635216707 in words is "one hundred thirty-one billion, six hundred thirty-five million, two hundred sixteen thousand, seven hundred seven".