20076393396646 has 32 divisors (see below), whose sum is σ = 31715968677120. Its totient is φ = 9504951804000.

The previous prime is 20076393396643. The next prime is 20076393396673. The reversal of 20076393396646 is 64669339367002.

It is a super-2 number, since 2×20076393396646² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20076393396641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 761986045 + ... + 762012391.

It is an arithmetic number, because the mean of its divisors is an integer number (991124021160).

Almost surely, 2^{20076393396646} is an apocalyptic number.

20076393396646 is a deficient number, since it is larger than the sum of its proper divisors (11639575280474).

20076393396646 is a wasteful number, since it uses less digits than its factorization.

20076393396646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35980.

The product of its (nonzero) digits is 158723712, while the sum is 64.

The spelling of 20076393396646 in words is "twenty trillion, seventy-six billion, three hundred ninety-three million, three hundred ninety-six thousand, six hundred forty-six".