26661177036 has 324 divisors, whose sum is σ = 78675433200. Its totient is φ = 7605861120.

The previous prime is 26661177029. The next prime is 26661177041. The reversal of 26661177036 is 63077116662.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26661176982 and 26661177000.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 133975665 + ... + 133975863.

Almost surely, 2^26661177036 is an apocalyptic number.

26661177036 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26661177036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39337716600).

26661177036 is an abundant number, since it is smaller than the sum of its proper divisors (52014256164).

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

26661177036 is a wasteful number, since it uses less digits than its factorization.

26661177036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 297 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The spelling of 26661177036 in words is "twenty-six billion, six hundred sixty-one million, one hundred seventy-seven thousand, thirty-six".