671054188522020 has 48 divisors (see below), whose sum is σ = 1893294870844608. Its totient is φ = 177581769988480.

The previous prime is 671054188522007. The next prime is 671054188522033. The reversal of 671054188522020 is 20225881450176.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (671054188522007) and next prime (671054188522033).

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, 42687917619 + ... + 42687933338.

It is an arithmetic number, because the mean of its divisors is an integer number (39443643142596).

Almost surely, 2^{671054188522020} is an apocalyptic number.

671054188522020 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671054188522020 is an abundant number, since it is smaller than the sum of its proper divisors (1222240682322588).

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

671054188522020 is a wasteful number, since it uses less digits than its factorization.

671054188522020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85375851100 (or 85375851098 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 671054188522020 in words is "six hundred seventy-one trillion, fifty-four billion, one hundred eighty-eight million, five hundred twenty-two thousand, twenty".