3215400330032 has 80 divisors (see below), whose sum is σ = 6960147450624. Its totient is φ = 1426692960000.

The previous prime is 3215400330019. The next prime is 3215400330047. The reversal of 3215400330032 is 2300330045123.

It is a happy number.

It is a super-2 number, since 2×3215400330032² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3215400329983 and 3215400330010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11738 + ... + 2535929.

Almost surely, 2^{3215400330032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3215400330032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3480073725312).

3215400330032 is an abundant number, since it is smaller than the sum of its proper divisors (3744747120592).

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

3215400330032 is a wasteful number, since it uses less digits than its factorization.

3215400330032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547858 (or 2547852 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 3215400330032 its reverse (2300330045123), we get a palindrome (5515730375155).

The spelling of 3215400330032 in words is "three trillion, two hundred fifteen billion, four hundred million, three hundred thirty thousand, thirty-two".