1420651606520 has 64 divisors (see below), whose sum is σ = 3384641790720. Its totient is φ = 534810118144.

The previous prime is 1420651606501. The next prime is 1420651606589. The reversal of 1420651606520 is 256061560241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29632889 + ... + 29680791.

It is an arithmetic number, because the mean of its divisors is an integer number (52885027980).

Almost surely, 2^{1420651606520} is an apocalyptic number.

1420651606520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420651606520 is an abundant number, since it is smaller than the sum of its proper divisors (1963990184200).

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

1420651606520 is a wasteful number, since it uses less digits than its factorization.

1420651606520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91544 (or 91540 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 1420651606520 in words is "one trillion, four hundred twenty billion, six hundred fifty-one million, six hundred six thousand, five hundred twenty".