55635660771 has 8 divisors (see below), whose sum is σ = 74199110160. Its totient is φ = 37081325952.

The previous prime is 55635660727. The next prime is 55635660781. The reversal of 55635660771 is 17706653655.

It is a happy number.

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

It is not a de Polignac number, because 55635660771 - 2¹¹ = 55635658723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55635660781) 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, 2264386 + ... + 2288823.

It is an arithmetic number, because the mean of its divisors is an integer number (9274888770).

Almost surely, 2^55635660771 is an apocalyptic number.

55635660771 is a deficient number, since it is larger than the sum of its proper divisors (18563449389).

55635660771 is a wasteful number, since it uses less digits than its factorization.

55635660771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557285.

The product of its (nonzero) digits is 3969000, while the sum is 51.

The spelling of 55635660771 in words is "fifty-five billion, six hundred thirty-five million, six hundred sixty thousand, seven hundred seventy-one".