20646671276000 has 192 divisors, whose sum is σ = 63246385972224. Its totient is φ = 6435326016000.

The previous prime is 20646671275963. The next prime is 20646671276017. The reversal of 20646671276000 is 67217664602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33209324 + ... + 33825323.

It is an arithmetic number, because the mean of its divisors is an integer number (329408260272).

Almost surely, 2^{20646671276000} is an apocalyptic number.

20646671276000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20646671276000 is an abundant number, since it is smaller than the sum of its proper divisors (42599714696224).

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

20646671276000 is a wasteful number, since it uses less digits than its factorization.

20646671276000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67034690 (or 67034672 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 47.

The spelling of 20646671276000 in words is "twenty trillion, six hundred forty-six billion, six hundred seventy-one million, two hundred seventy-six thousand".