26020220455261 has 8 divisors (see below), whose sum is σ = 27645684302880. Its totient is φ = 24420354463728.

The previous prime is 26020220455189. The next prime is 26020220455279. The reversal of 26020220455261 is 16255402202062.

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

It is a cyclic number.

It is not a de Polignac number, because 26020220455261 - 2³¹ = 26018072971613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26020220455261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26020220455961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6399461926 + ... + 6399465991.

It is an arithmetic number, because the mean of its divisors is an integer number (3455710537860).

Almost surely, 2^{26020220455261} is an apocalyptic number.

It is an amenable number.

26020220455261 is a deficient number, since it is larger than the sum of its proper divisors (1625463847619).

26020220455261 is a wasteful number, since it uses less digits than its factorization.

26020220455261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12798928043.

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 26020220455261 in words is "twenty-six trillion, twenty billion, two hundred twenty million, four hundred fifty-five thousand, two hundred sixty-one".