131435356646 has 32 divisors (see below), whose sum is σ = 220571527680. Its totient is φ = 58220123200.

The previous prime is 131435356627. The next prime is 131435356651. The reversal of 131435356646 is 646653534131.

It is a happy number.

It is a super-2 number, since 2×131435356646² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131435356646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 717935 + ... + 882213.

It is an arithmetic number, because the mean of its divisors is an integer number (6892860240).

Almost surely, 2^131435356646 is an apocalyptic number.

131435356646 is a deficient number, since it is larger than the sum of its proper divisors (89136171034).

131435356646 is a wasteful number, since it uses less digits than its factorization.

131435356646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165220.

The product of its digits is 2332800, while the sum is 47.

The spelling of 131435356646 in words is "one hundred thirty-one billion, four hundred thirty-five million, three hundred fifty-six thousand, six hundred forty-six".