2145650136644 has 48 divisors (see below), whose sum is σ = 4366706512896. Its totient is φ = 903440822400.

The previous prime is 2145650136629. The next prime is 2145650136701. The reversal of 2145650136644 is 4466310565412.

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, 746174 + ... + 2201834.

It is an arithmetic number, because the mean of its divisors is an integer number (90973052352).

Almost surely, 2^{2145650136644} is an apocalyptic number.

It is an amenable number.

2145650136644 is an abundant number, since it is smaller than the sum of its proper divisors (2221056376252).

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

2145650136644 is a wasteful number, since it uses less digits than its factorization.

2145650136644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456596 (or 1456594 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 2145650136644 in words is "two trillion, one hundred forty-five billion, six hundred fifty million, one hundred thirty-six thousand, six hundred forty-four".