20064664426662 has 80 divisors (see below), whose sum is σ = 45313306773504. Its totient is φ = 6635729790000.

The previous prime is 20064664426657. The next prime is 20064664426679. The reversal of 20064664426662 is 26662446646002.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 20064664426599 and 20064664426608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19332987 + ... + 20344377.

Almost surely, 2^{20064664426662} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20064664426662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22656653386752).

20064664426662 is an abundant number, since it is smaller than the sum of its proper divisors (25248642346842).

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

20064664426662 is a wasteful number, since it uses less digits than its factorization.

20064664426662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1012367 (or 1012358 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 54.

The spelling of 20064664426662 in words is "twenty trillion, sixty-four billion, six hundred sixty-four million, four hundred twenty-six thousand, six hundred sixty-two".