26163170440 has 64 divisors (see below), whose sum is σ = 66290296320. Its totient is φ = 9206976000.

The previous prime is 26163170431. The next prime is 26163170491. The reversal of 26163170440 is 4407136162.

It is a super-2 number, since 2×26163170440² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26163170396 and 26163170405.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945421 + ... + 972700.

It is an arithmetic number, because the mean of its divisors is an integer number (1035785880).

Almost surely, 2^26163170440 is an apocalyptic number.

26163170440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26163170440 is an abundant number, since it is smaller than the sum of its proper divisors (40127125880).

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

26163170440 is a wasteful number, since it uses less digits than its factorization.

26163170440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918174 (or 1918170 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 26163170440 in words is "twenty-six billion, one hundred sixty-three million, one hundred seventy thousand, four hundred forty".