65090240521131 has 16 divisors (see below), whose sum is σ = 102384648685568. Its totient is φ = 35994603052800.

The previous prime is 65090240521123. The next prime is 65090240521133. The reversal of 65090240521131 is 13112504209056.

It is a happy number.

It is not a de Polignac number, because 65090240521131 - 2³ = 65090240521123 is a prime.

It is a super-2 number, since 2×65090240521131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65090240521131.

It is not an unprimeable number, because it can be changed into a prime (65090240521133) 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, 49992503590 + ... + 49992504891.

It is an arithmetic number, because the mean of its divisors is an integer number (6399040542848).

Almost surely, 2^{65090240521131} is an apocalyptic number.

65090240521131 is a deficient number, since it is larger than the sum of its proper divisors (37294408164437).

65090240521131 is a wasteful number, since it uses less digits than its factorization.

65090240521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99985008522.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 65090240521131 in words is "sixty-five trillion, ninety billion, two hundred forty million, five hundred twenty-one thousand, one hundred thirty-one".