1020455254520 has 32 divisors (see below), whose sum is σ = 2472641579520. Its totient is φ = 376783478400.

The previous prime is 1020455254501. The next prime is 1020455254537. The reversal of 1020455254520 is 254525540201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981206456 + ... + 981207495.

It is an arithmetic number, because the mean of its divisors is an integer number (77270049360).

Almost surely, 2^{1020455254520} is an apocalyptic number.

1020455254520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020455254520 is an abundant number, since it is smaller than the sum of its proper divisors (1452186325000).

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

1020455254520 is a wasteful number, since it uses less digits than its factorization.

1020455254520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962413975 (or 1962413971 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 1020455254520 in words is "one trillion, twenty billion, four hundred fifty-five million, two hundred fifty-four thousand, five hundred twenty".