1420064520520 has 64 divisors (see below), whose sum is σ = 3298432435200. Its totient is φ = 549666051840.

The previous prime is 1420064520517. The next prime is 1420064520521. The reversal of 1420064520520 is 250254600241.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1420064520521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25872466 + ... + 25927294.

It is an arithmetic number, because the mean of its divisors is an integer number (51538006800).

Almost surely, 2^{1420064520520} is an apocalyptic number.

1420064520520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420064520520 is an abundant number, since it is smaller than the sum of its proper divisors (1878367914680).

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

1420064520520 is a wasteful number, since it uses less digits than its factorization.

1420064520520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75758 (or 75754 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 1420064520520 in words is "one trillion, four hundred twenty billion, sixty-four million, five hundred twenty thousand, five hundred twenty".