20004304732646 has 64 divisors (see below), whose sum is σ = 33415581265920. Its totient is φ = 8919258606720.

The previous prime is 20004304732631. The next prime is 20004304732703. The reversal of 20004304732646 is 64623740340002.

It is a super-2 number, since 2×20004304732646² (a number of 27 digits) contains 22 as substring.

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, 1918136960 + ... + 1918147388.

It is an arithmetic number, because the mean of its divisors is an integer number (522118457280).

Almost surely, 2^{20004304732646} is an apocalyptic number.

20004304732646 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20004304732646 is a deficient number, since it is larger than the sum of its proper divisors (13411276533274).

20004304732646 is a wasteful number, since it uses less digits than its factorization.

20004304732646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14421.

The product of its (nonzero) digits is 580608, while the sum is 41.

The spelling of 20004304732646 in words is "twenty trillion, four billion, three hundred four million, seven hundred thirty-two thousand, six hundred forty-six".