2245691356890 has 64 divisors (see below), whose sum is σ = 5466384548352. Its totient is φ = 590376896000.

The previous prime is 2245691356837. The next prime is 2245691356919. The reversal of 2245691356890 is 986531965422.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 884466 + ... + 2296445.

It is an arithmetic number, because the mean of its divisors is an integer number (85412258568).

Almost surely, 2^{2245691356890} is an apocalyptic number.

2245691356890 is an abundant number, since it is smaller than the sum of its proper divisors (3220693191462).

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

2245691356890 is a wasteful number, since it uses less digits than its factorization.

2245691356890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181255.

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 2245691356890 in words is "two trillion, two hundred forty-five billion, six hundred ninety-one million, three hundred fifty-six thousand, eight hundred ninety".