55266273477636 has 48 divisors (see below), whose sum is σ = 139008924636288. Its totient is φ = 16988513472000.

The previous prime is 55266273477619. The next prime is 55266273477637. The reversal of 55266273477636 is 63677437266255.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (55266273477637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171648565 + ... + 171970236.

It is an arithmetic number, because the mean of its divisors is an integer number (2896019263256).

Almost surely, 2^{55266273477636} is an apocalyptic number.

It is an amenable number.

55266273477636 is an abundant number, since it is smaller than the sum of its proper divisors (83742651158652).

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

55266273477636 is a wasteful number, since it uses less digits than its factorization.

55266273477636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343619852 (or 343619850 counting only the distinct ones).

The product of its digits is 1600300800, while the sum is 69.

The spelling of 55266273477636 in words is "fifty-five trillion, two hundred sixty-six billion, two hundred seventy-three million, four hundred seventy-seven thousand, six hundred thirty-six".