1420166216640 has 224 divisors, whose sum is σ = 4780280715264. Its totient is φ = 356588974080.

The previous prime is 1420166216639. The next prime is 1420166216653. The reversal of 1420166216640 is 466126610241.

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, 456247 + ... + 1745993.

Almost surely, 2^{1420166216640} is an apocalyptic number.

1420166216640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420166216640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2390140357632).

1420166216640 is an abundant number, since it is smaller than the sum of its proper divisors (3360114498624).

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

1420166216640 is a wasteful number, since it uses less digits than its factorization.

1420166216640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289835 (or 1289825 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 1420166216640 in words is "one trillion, four hundred twenty billion, one hundred sixty-six million, two hundred sixteen thousand, six hundred forty".