2272952661 has 24 divisors (see below), whose sum is σ = 3620685600. Its totient is φ = 1263723552.

The previous prime is 2272952657. The next prime is 2272952681. The reversal of 2272952661 is 1662592722.

It is not a de Polignac number, because 2272952661 - 2² = 2272952657 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2272952641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203511 + ... + 214388.

It is an arithmetic number, because the mean of its divisors is an integer number (150861900).

Almost surely, 2^2272952661 is an apocalyptic number.

2272952661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2272952661 is a deficient number, since it is larger than the sum of its proper divisors (1347732939).

2272952661 is a wasteful number, since it uses less digits than its factorization.

2272952661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417953 (or 417946 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 2272952661 is about 47675.4932958223. The cubic root of 2272952661 is about 1314.8114079419.

The spelling of 2272952661 in words is "two billion, two hundred seventy-two million, nine hundred fifty-two thousand, six hundred sixty-one".