1425656144220 has 96 divisors (see below), whose sum is σ = 4976836010496. Its totient is φ = 296240236800.

The previous prime is 1425656144191. The next prime is 1425656144243. The reversal of 1425656144220 is 224416565241.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 154287171 + ... + 154296410.

It is an arithmetic number, because the mean of its divisors is an integer number (51842041776).

Almost surely, 2^{1425656144220} is an apocalyptic number.

1425656144220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425656144220 is an abundant number, since it is smaller than the sum of its proper divisors (3551179866276).

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

1425656144220 is a wasteful number, since it uses less digits than its factorization.

1425656144220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308583611 (or 308583609 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 1425656144220 in words is "one trillion, four hundred twenty-five billion, six hundred fifty-six million, one hundred forty-four thousand, two hundred twenty".