1020615164420 has 48 divisors (see below), whose sum is σ = 2213037904896. Its totient is φ = 394968336000.

The previous prime is 1020615164399. The next prime is 1020615164447. The reversal of 1020615164420 is 244615160201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2051810 + ... + 2500230.

It is an arithmetic number, because the mean of its divisors is an integer number (46104956352).

Almost surely, 2^{1020615164420} is an apocalyptic number.

1020615164420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020615164420 is an abundant number, since it is smaller than the sum of its proper divisors (1192422740476).

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

1020615164420 is a wasteful number, since it uses less digits than its factorization.

1020615164420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452132 (or 452130 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 1020615164420 in words is "one trillion, twenty billion, six hundred fifteen million, one hundred sixty-four thousand, four hundred twenty".