131816078337 has 16 divisors (see below), whose sum is σ = 189144001152. Its totient is φ = 81352254720.

The previous prime is 131816078333. The next prime is 131816078351. The reversal of 131816078337 is 733870618131.

It is not a de Polignac number, because 131816078337 - 2² = 131816078333 is a prime.

It is a super-2 number, since 2×131816078337² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131816078333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21182373 + ... + 21188594.

It is an arithmetic number, because the mean of its divisors is an integer number (11821500072).

Almost surely, 2^131816078337 is an apocalyptic number.

131816078337 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

131816078337 is a deficient number, since it is larger than the sum of its proper divisors (57327922815).

131816078337 is a wasteful number, since it uses less digits than its factorization.

131816078337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42371048.

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 131816078337 in words is "one hundred thirty-one billion, eight hundred sixteen million, seventy-eight thousand, three hundred thirty-seven".