1201660522 has 8 divisors (see below), whose sum is σ = 1802700900. Its totient is φ = 600760224.

The previous prime is 1201660517. The next prime is 1201660549. The reversal of 1201660522 is 2250661021.

It can be written as a sum of positive squares in 2 ways, for example, as 646634041 + 555026481 = 25429^2 + 23559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9997 + ... + 50032.

Almost surely, 2^1201660522 is an apocalyptic number.

1201660522 is a deficient number, since it is larger than the sum of its proper divisors (601040378).

1201660522 is a wasteful number, since it uses less digits than its factorization.

1201660522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70040.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1201660522 is about 34664.9754363104. The cubic root of 1201660522 is about 1063.1485010271.

The spelling of 1201660522 in words is "one billion, two hundred one million, six hundred sixty thousand, five hundred twenty-two".