1101661264 has 40 divisors (see below), whose sum is σ = 2330377632. Its totient is φ = 500353920.

The previous prime is 1101661261. The next prime is 1101661271. The reversal of 1101661264 is 4621661011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101661261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409267 + ... + 411949.

Almost surely, 2^1101661264 is an apocalyptic number.

It is an amenable number.

1101661264 is an abundant number, since it is smaller than the sum of its proper divisors (1228716368).

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

1101661264 is a wasteful number, since it uses less digits than its factorization.

1101661264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035 (or 5029 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1101661264 is about 33191.2829520041. The cubic root of 1101661264 is about 1032.7995176439.

The spelling of 1101661264 in words is "one billion, one hundred one million, six hundred sixty-one thousand, two hundred sixty-four".