3240215470655 has 16 divisors (see below), whose sum is σ = 3917007180000. Its totient is φ = 2573010181632.

The previous prime is 3240215470651. The next prime is 3240215470703. The reversal of 3240215470655 is 5560745120423.

It is a cyclic number.

It is not a de Polignac number, because 3240215470655 - 2² = 3240215470651 is a prime.

It is a super-2 number, since 2×3240215470655² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240215470651) 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, 7275596 + ... + 7708094.

It is an arithmetic number, because the mean of its divisors is an integer number (244812948750).

Almost surely, 2^{3240215470655} is an apocalyptic number.

3240215470655 is a deficient number, since it is larger than the sum of its proper divisors (676791709345).

3240215470655 is a wasteful number, since it uses less digits than its factorization.

3240215470655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443578.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 3240215470655 in words is "three trillion, two hundred forty billion, two hundred fifteen million, four hundred seventy thousand, six hundred fifty-five".