1226250166770 has 96 divisors (see below), whose sum is σ = 3261577690800. Its totient is φ = 319561500672.

The previous prime is 1226250166741. The next prime is 1226250166781. The reversal of 1226250166770 is 776610526221.

1226250166770 is a `hidden beast` number, since 1 + 2 + 2 + 625 + 0 + 16 + 6 + 7 + 7 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 610325000289 + 615925166481 = 781233^2 + 784809^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140035 + ... + 1572294.

Almost surely, 2^{1226250166770} is an apocalyptic number.

1226250166770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1226250166770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630788845400).

1226250166770 is an abundant number, since it is smaller than the sum of its proper divisors (2035327524030).

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

1226250166770 is a wasteful number, since it uses less digits than its factorization.

1226250166770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712524 (or 1712521 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 1226250166770 in words is "one trillion, two hundred twenty-six billion, two hundred fifty million, one hundred sixty-six thousand, seven hundred seventy".