1371612202020 has 72 divisors (see below), whose sum is σ = 4160702650104. Its totient is φ = 365750450688.

The previous prime is 1371612202003. The next prime is 1371612202021. The reversal of 1371612202020 is 202022161731.

1371612202020 is a `hidden beast` number, since 1 + 3 + 7 + 1 + 612 + 2 + 0 + 20 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 97820068644 + 1273792133376 = 312762^2 + 1128624^2 .

It is not an unprimeable number, because it can be changed into a prime (1371612202021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5739562 + ... + 5973758.

It is an arithmetic number, because the mean of its divisors is an integer number (57787536807).

Almost surely, 2^{1371612202020} is an apocalyptic number.

1371612202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1371612202020 is an abundant number, since it is smaller than the sum of its proper divisors (2789090448084).

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

1371612202020 is a wasteful number, since it uses less digits than its factorization.

1371612202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266749 (or 266744 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 1371612202020 its reverse (202022161731), we get a palindrome (1573634363751).

The spelling of 1371612202020 in words is "one trillion, three hundred seventy-one billion, six hundred twelve million, two hundred two thousand, twenty".