2163642601652 has 24 divisors (see below), whose sum is σ = 4432828747200. Its totient is φ = 904658927040.

The previous prime is 2163642601633. The next prime is 2163642601661. The reversal of 2163642601652 is 2561062463612.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942351902 + ... + 942354197.

It is an arithmetic number, because the mean of its divisors is an integer number (184701197800).

Almost surely, 2^{2163642601652} is an apocalyptic number.

It is an amenable number.

2163642601652 is an abundant number, since it is smaller than the sum of its proper divisors (2269186145548).

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

2163642601652 is a wasteful number, since it uses less digits than its factorization.

2163642601652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884706151 (or 1884706149 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 2163642601652 in words is "two trillion, one hundred sixty-three billion, six hundred forty-two million, six hundred one thousand, six hundred fifty-two".