2145212010660 has 192 divisors, whose sum is σ = 6336020662272. Its totient is φ = 541240111104.

The previous prime is 2145212010659. The next prime is 2145212010677. The reversal of 2145212010660 is 660102125412.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99364387 + ... + 99385973.

It is an arithmetic number, because the mean of its divisors is an integer number (33000107616).

Almost surely, 2^{2145212010660} is an apocalyptic number.

2145212010660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2145212010660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3168010331136).

2145212010660 is an abundant number, since it is smaller than the sum of its proper divisors (4190808651612).

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

2145212010660 is a wasteful number, since it uses less digits than its factorization.

2145212010660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22402 (or 22400 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 2145212010660 in words is "two trillion, one hundred forty-five billion, two hundred twelve million, ten thousand, six hundred sixty".