2653166820 has 48 divisors (see below), whose sum is σ = 7497040320. Its totient is φ = 701018496.

The previous prime is 2653166777. The next prime is 2653166827. The reversal of 2653166820 is 286613562.

It is not an unprimeable number, because it can be changed into a prime (2653166827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196302 + ... + 209381.

It is an arithmetic number, because the mean of its divisors is an integer number (156188340).

Almost surely, 2^2653166820 is an apocalyptic number.

2653166820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2653166820 is an abundant number, since it is smaller than the sum of its proper divisors (4843873500).

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

2653166820 is a wasteful number, since it uses less digits than its factorization.

2653166820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405804 (or 405802 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 2653166820 is about 51508.9003959510. The cubic root of 2653166820 is about 1384.3785210162.

The spelling of 2653166820 in words is "two billion, six hundred fifty-three million, one hundred sixty-six thousand, eight hundred twenty".