3340521400465 has 16 divisors (see below), whose sum is σ = 4038751758672. Its totient is φ = 2652408152064.

The previous prime is 3340521400459. The next prime is 3340521400547. The reversal of 3340521400465 is 5640041250433.

It can be written as a sum of positive squares in 8 ways, for example, as 15821363089 + 3324700037376 = 125783^2 + 1823376^2 .

It is a cyclic number.

It is not a de Polignac number, because 3340521400465 - 2¹⁵ = 3340521367697 is a prime.

It is a super-2 number, since 2×3340521400465² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 4336524 + ... + 5048413.

It is an arithmetic number, because the mean of its divisors is an integer number (252421984917).

Almost surely, 2^{3340521400465} is an apocalyptic number.

It is an amenable number.

3340521400465 is a deficient number, since it is larger than the sum of its proper divisors (698230358207).

3340521400465 is a wasteful number, since it uses less digits than its factorization.

3340521400465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9385476.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 3340521400465 its reverse (5640041250433), we get a palindrome (8980562650898).

The spelling of 3340521400465 in words is "three trillion, three hundred forty billion, five hundred twenty-one million, four hundred thousand, four hundred sixty-five".