201560490890 has 64 divisors (see below), whose sum is σ = 405172927872. Its totient is φ = 71570553600.

The previous prime is 201560490877. The next prime is 201560490893. The reversal of 201560490890 is 98094065102.

It is not an unprimeable number, because it can be changed into a prime (201560490893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1148204 + ... + 1312056.

It is an arithmetic number, because the mean of its divisors is an integer number (6330826998).

Almost surely, 2^201560490890 is an apocalyptic number.

201560490890 is an abundant number, since it is smaller than the sum of its proper divisors (203612436982).

201560490890 is a wasteful number, since it uses less digits than its factorization.

201560490890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164135.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 201560490890 in words is "two hundred one billion, five hundred sixty million, four hundred ninety thousand, eight hundred ninety".