26530103664 has 200 divisors, whose sum is σ = 80648900640. Its totient is φ = 8403512832.

The previous prime is 26530103647. The next prime is 26530103683. The reversal of 26530103664 is 46630103562.

26530103664 is a `hidden beast` number, since 26 + 530 + 10 + 36 + 64 = 666.

It is a super-3 number, since 3×26530103664³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4677022 + ... + 4682690.

Almost surely, 2^26530103664 is an apocalyptic number.

26530103664 is a gapful number since it is divisible by the number (24) 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 26530103664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40324450320).

26530103664 is an abundant number, since it is smaller than the sum of its proper divisors (54118796976).

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

26530103664 is a wasteful number, since it uses less digits than its factorization.

26530103664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5869 (or 5854 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 26530103664 in words is "twenty-six billion, five hundred thirty million, one hundred three thousand, six hundred sixty-four".