201615661110604 has 48 divisors (see below), whose sum is σ = 402981834302208. Its totient is φ = 87435370672128.

The previous prime is 201615661110593. The next prime is 201615661110607. The reversal of 201615661110604 is 406011166516102.

It is not an unprimeable number, because it can be changed into a prime (201615661110607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187331629 + ... + 188404804.

It is an arithmetic number, because the mean of its divisors is an integer number (8395454881296).

Almost surely, 2^{201615661110604} is an apocalyptic number.

It is an amenable number.

201615661110604 is a deficient number, since it is larger than the sum of its proper divisors (201366173191604).

201615661110604 is a wasteful number, since it uses less digits than its factorization.

201615661110604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375737074 (or 375737072 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 201615661110604 in words is "two hundred one trillion, six hundred fifteen billion, six hundred sixty-one million, one hundred ten thousand, six hundred four".