26661080 has 16 divisors (see below), whose sum is σ = 59987520. Its totient is φ = 10664416.

The previous prime is 26661059. The next prime is 26661101. The reversal of 26661080 is 8016662.

It is an interprime number because it is at equal distance from previous prime (26661059) and next prime (26661101).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333224 + ... + 333303.

It is an arithmetic number, because the mean of its divisors is an integer number (3749220).

Almost surely, 2^26661080 is an apocalyptic number.

26661080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26661080 is an abundant number, since it is smaller than the sum of its proper divisors (33326440).

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

26661080 is a wasteful number, since it uses less digits than its factorization.

26661080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666538 (or 666534 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 26661080 is about 5163.4368399352. The cubic root of 26661080 is about 298.7394515512.

The spelling of 26661080 in words is "twenty-six million, six hundred sixty-one thousand, eighty".