131405734366 has 4 divisors (see below), whose sum is σ = 197108601552. Its totient is φ = 65702867182.

The previous prime is 131405734363. The next prime is 131405734381. The reversal of 131405734366 is 663437504131.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131405734363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32851433590 + ... + 32851433593.

It is an arithmetic number, because the mean of its divisors is an integer number (49277150388).

Almost surely, 2^131405734366 is an apocalyptic number.

131405734366 is a deficient number, since it is larger than the sum of its proper divisors (65702867186).

131405734366 is an equidigital number, since it uses as much as digits as its factorization.

131405734366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65702867185.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 131405734366 in words is "one hundred thirty-one billion, four hundred five million, seven hundred thirty-four thousand, three hundred sixty-six".