2201667720 has 64 divisors (see below), whose sum is σ = 7548577920. Its totient is φ = 503238144.

The previous prime is 2201667703. The next prime is 2201667737. The reversal of 2201667720 is 277661022.

It is an interprime number because it is at equal distance from previous prime (2201667703) and next prime (2201667737).

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, 1309677 + ... + 1311356.

It is an arithmetic number, because the mean of its divisors is an integer number (117946530).

Almost surely, 2^2201667720 is an apocalyptic number.

2201667720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201667720 is an abundant number, since it is smaller than the sum of its proper divisors (5346910200).

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

2201667720 is a wasteful number, since it uses less digits than its factorization.

2201667720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621054 (or 2621050 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 2201667720 is about 46921.9321852798. The cubic root of 2201667720 is about 1300.9200035967.

The spelling of 2201667720 in words is "two billion, two hundred one million, six hundred sixty-seven thousand, seven hundred twenty".