26556003146545 has 8 divisors (see below), whose sum is σ = 31867242598440. Its totient is φ = 21244776635520.

The previous prime is 26556003146509. The next prime is 26556003146581. The reversal of 26556003146545 is 54564130065562.

It is an interprime number because it is at equal distance from previous prime (26556003146509) and next prime (26556003146581).

It can be written as a sum of positive squares in 4 ways, for example, as 7138898064 + 26548864248481 = 84492^2 + 5152559^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26556003146545 - 2¹⁹ = 26556002622257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26556003146492 and 26556003146501.

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 7 ways as a sum of consecutive naturals, for example, 2070421 + ... + 7576189.

It is an arithmetic number, because the mean of its divisors is an integer number (3983405324805).

Almost surely, 2^{26556003146545} is an apocalyptic number.

It is an amenable number.

26556003146545 is a deficient number, since it is larger than the sum of its proper divisors (5311239451895).

26556003146545 is an equidigital number, since it uses as much as digits as its factorization.

26556003146545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470435.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 26556003146545 in words is "twenty-six trillion, five hundred fifty-six billion, three million, one hundred forty-six thousand, five hundred forty-five".