1226166000 has 80 divisors (see below), whose sum is σ = 3953178528. Its totient is φ = 326976000.

The previous prime is 1226165959. The next prime is 1226166013. The reversal of 1226166000 is 6616221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 96181 + ... + 108180.

Almost surely, 2^1226166000 is an apocalyptic number.

1226166000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226166000 is an abundant number, since it is smaller than the sum of its proper divisors (2727012528).

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

1226166000 is a wasteful number, since it uses less digits than its factorization.

1226166000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204387 (or 204371 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1226166000 is about 35016.6531810223. The cubic root of 1226166000 is about 1070.3268573740.

The spelling of 1226166000 in words is "one billion, two hundred twenty-six million, one hundred sixty-six thousand".