1020804546816 has 72 divisors (see below), whose sum is σ = 3018698651360. Its totient is φ = 340268179968.

The previous prime is 1020804546803. The next prime is 1020804546821. The reversal of 1020804546816 is 6186454080201.

It is a happy number.

1020804546816 is a `hidden beast` number, since 1 + 0 + 20 + 8 + 0 + 4 + 546 + 81 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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, 73836010 + ... + 73849833.

Almost surely, 2^{1020804546816} is an apocalyptic number.

1020804546816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1020804546816 is an abundant number, since it is smaller than the sum of its proper divisors (1997894104544).

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

1020804546816 is an equidigital number, since it uses as much as digits as its factorization.

1020804546816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147685868 (or 147685848 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 1020804546816 in words is "one trillion, twenty billion, eight hundred four million, five hundred forty-six thousand, eight hundred sixteen".