1201664562 has 32 divisors (see below), whose sum is σ = 2752303104. Its totient is φ = 342627600.

The previous prime is 1201664543. The next prime is 1201664593. The reversal of 1201664562 is 2654661021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8514 + ... + 49757.

It is an arithmetic number, because the mean of its divisors is an integer number (86009472).

Almost surely, 2^1201664562 is an apocalyptic number.

1201664562 is an abundant number, since it is smaller than the sum of its proper divisors (1550638542).

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

1201664562 is a wasteful number, since it uses less digits than its factorization.

1201664562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58774.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 1201664562 is about 34665.0337083350. The cubic root of 1201664562 is about 1063.1496924659.

The spelling of 1201664562 in words is "one billion, two hundred one million, six hundred sixty-four thousand, five hundred sixty-two".