26135166420 has 144 divisors (see below), whose sum is σ = 87106743360. Its totient is φ = 6290150400.

The previous prime is 26135166383. The next prime is 26135166469. The reversal of 26135166420 is 2466153162.

26135166420 is a `hidden beast` number, since 2 + 6 + 1 + 3 + 5 + 1 + 6 + 642 + 0 = 666.

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 47 ways as a sum of consecutive naturals, for example, 227740 + ... + 322700.

It is an arithmetic number, because the mean of its divisors is an integer number (604907940).

Almost surely, 2^26135166420 is an apocalyptic number.

26135166420 is a gapful number since it is divisible by the number (20) 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 26135166420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43553371680).

26135166420 is an abundant number, since it is smaller than the sum of its proper divisors (60971576940).

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

26135166420 is a wasteful number, since it uses less digits than its factorization.

26135166420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95126 (or 95121 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 26135166420 in words is "twenty-six billion, one hundred thirty-five million, one hundred sixty-six thousand, four hundred twenty".