26530156620 has 144 divisors (see below), whose sum is σ = 90163670688. Its totient is φ = 6257710080.

The previous prime is 26530156613. The next prime is 26530156621. The reversal of 26530156620 is 2665103562.

It is a happy number.

26530156620 is a `hidden beast` number, since 2 + 65 + 30 + 1 + 566 + 2 + 0 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (26530156621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107809 + ... + 254328.

It is an arithmetic number, because the mean of its divisors is an integer number (626136602).

Almost surely, 2^26530156620 is an apocalyptic number.

26530156620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26530156620 is an abundant number, since it is smaller than the sum of its proper divisors (63633514068).

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

26530156620 is a wasteful number, since it uses less digits than its factorization.

26530156620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362200 (or 362195 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 26530156620 in words is "twenty-six billion, five hundred thirty million, one hundred fifty-six thousand, six hundred twenty".