26002715201664 has 32 divisors (see below), whose sum is σ = 69069712255440. Its totient is φ = 8667571733760.

The previous prime is 26002715201629. The next prime is 26002715201689. The reversal of 26002715201664 is 46610251720062.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×26002715201664² (a number of 28 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 3 ways as a sum of consecutive naturals, for example, 33857701702 + ... + 33857702469.

Almost surely, 2^{26002715201664} is an apocalyptic number.

26002715201664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26002715201664 is an abundant number, since it is smaller than the sum of its proper divisors (43066997053776).

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

26002715201664 is an equidigital number, since it uses as much as digits as its factorization.

26002715201664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67715404188 (or 67715404176 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 26002715201664 in words is "twenty-six trillion, two billion, seven hundred fifteen million, two hundred one thousand, six hundred sixty-four".