2145215411040 has 192 divisors, whose sum is σ = 7376920399296. Its totient is φ = 520819310592.

The previous prime is 2145215411011. The next prime is 2145215411047. The reversal of 2145215411040 is 401145125412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2145215410989 and 2145215411007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145215411047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1899169 + ... + 2810208.

It is an arithmetic number, because the mean of its divisors is an integer number (38421460413).

Almost surely, 2^{2145215411040} is an apocalyptic number.

2145215411040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145215411040 is an abundant number, since it is smaller than the sum of its proper divisors (5231704988256).

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

2145215411040 is a wasteful number, since it uses less digits than its factorization.

2145215411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709481 (or 4709473 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The spelling of 2145215411040 in words is "two trillion, one hundred forty-five billion, two hundred fifteen million, four hundred eleven thousand, forty".