20694633649602 has 24 divisors (see below), whose sum is σ = 45493988024688. Its totient is φ = 6271101105720.

The previous prime is 20694633649537. The next prime is 20694633649619.

20694633649602 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20694633649602² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14252501788 + ... + 14252503239.

It is an arithmetic number, because the mean of its divisors is an integer number (1895582834362).

Almost surely, 2^{20694633649602} is an apocalyptic number.

20694633649602 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20694633649602 is an abundant number, since it is smaller than the sum of its proper divisors (24799354375086).

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

20694633649602 is a wasteful number, since it uses less digits than its factorization.

20694633649602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28505005054 (or 28505005043 counting only the distinct ones).

The product of its (nonzero) digits is 60466176, while the sum is 60.

The spelling of 20694633649602 in words is "twenty trillion, six hundred ninety-four billion, six hundred thirty-three million, six hundred forty-nine thousand, six hundred two".