20346665524020 has 144 divisors (see below), whose sum is σ = 67498562896128. Its totient is φ = 4920100289280.

The previous prime is 20346665524013. The next prime is 20346665524033. The reversal of 20346665524020 is 2042556664302.

It is a super-2 number, since 2×20346665524020² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12156124 + ... + 13728243.

It is an arithmetic number, because the mean of its divisors is an integer number (468740020112).

Almost surely, 2^{20346665524020} is an apocalyptic number.

20346665524020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20346665524020 is an abundant number, since it is smaller than the sum of its proper divisors (47151897372108).

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

20346665524020 is a wasteful number, since it uses less digits than its factorization.

20346665524020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25884790 (or 25884785 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 45.

The spelling of 20346665524020 in words is "twenty trillion, three hundred forty-six billion, six hundred sixty-five million, five hundred twenty-four thousand, twenty".