26651305020 has 24 divisors (see below), whose sum is σ = 74623654224. Its totient is φ = 7107014656.

The previous prime is 26651304971. The next prime is 26651305061. The reversal of 26651305020 is 2050315662.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222094149 + ... + 222094268.

It is an arithmetic number, because the mean of its divisors is an integer number (3109318926).

Almost surely, 2^26651305020 is an apocalyptic number.

26651305020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26651305020 is an abundant number, since it is smaller than the sum of its proper divisors (47972349204).

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

26651305020 is a wasteful number, since it uses less digits than its factorization.

26651305020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444188429 (or 444188427 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 26651305020 in words is "twenty-six billion, six hundred fifty-one million, three hundred five thousand, twenty".