1645300726122 has 16 divisors (see below), whose sum is σ = 3295030265280. Its totient is φ = 547695439872.

The previous prime is 1645300726081. The next prime is 1645300726133. The reversal of 1645300726122 is 2216270035461.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184529047 + ... + 184537962.

It is an arithmetic number, because the mean of its divisors is an integer number (205939391580).

Almost surely, 2^{1645300726122} is an apocalyptic number.

1645300726122 is an abundant number, since it is smaller than the sum of its proper divisors (1649729539158).

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

1645300726122 is a wasteful number, since it uses less digits than its factorization.

1645300726122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369067757.

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 1645300726122 in words is "one trillion, six hundred forty-five billion, three hundred million, seven hundred twenty-six thousand, one hundred twenty-two".