2201639961852 has 36 divisors (see below), whose sum is σ = 5566681358056. Its totient is φ = 733692103200.

The previous prime is 2201639961811. The next prime is 2201639961887. The reversal of 2201639961852 is 2581699361022.

2201639961852 is a `hidden beast` number, since 2 + 2 + 0 + 16 + 3 + 9 + 9 + 618 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7685899 + ... + 7967202.

Almost surely, 2^{2201639961852} is an apocalyptic number.

It is an amenable number.

2201639961852 is an abundant number, since it is smaller than the sum of its proper divisors (3365041396204).

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

2201639961852 is a wasteful number, since it uses less digits than its factorization.

2201639961852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15657018 (or 15657013 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 2201639961852 in words is "two trillion, two hundred one billion, six hundred thirty-nine million, nine hundred sixty-one thousand, eight hundred fifty-two".