131355656454 has 128 divisors (see below), whose sum is σ = 303618585600. Its totient is φ = 37497152000.

The previous prime is 131355656417. The next prime is 131355656473. The reversal of 131355656454 is 454656553131.

It is a super-2 number, since 2×131355656454² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30201472 + ... + 30205820.

It is an arithmetic number, because the mean of its divisors is an integer number (2372020200).

Almost surely, 2^131355656454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131355656454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151809292800).

131355656454 is an abundant number, since it is smaller than the sum of its proper divisors (172262929146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131355656454 is a wasteful number, since it uses less digits than its factorization.

131355656454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686.

The product of its digits is 3240000, while the sum is 48.

The spelling of 131355656454 in words is "one hundred thirty-one billion, three hundred fifty-five million, six hundred fifty-six thousand, four hundred fifty-four".