11620455771 has 8 divisors (see below), whose sum is σ = 15507916560. Its totient is φ = 7739982752.

The previous prime is 11620455719. The next prime is 11620455779. The reversal of 11620455771 is 17755402611.

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 11620455771 - 2²³ = 11612067163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11620455779) 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, 1743060 + ... + 1749713.

It is an arithmetic number, because the mean of its divisors is an integer number (1938489570).

Almost surely, 2^11620455771 is an apocalyptic number.

11620455771 is a deficient number, since it is larger than the sum of its proper divisors (3887460789).

11620455771 is a wasteful number, since it uses less digits than its factorization.

11620455771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3493885.

The product of its (nonzero) digits is 58800, while the sum is 39.

The spelling of 11620455771 in words is "eleven billion, six hundred twenty million, four hundred fifty-five thousand, seven hundred seventy-one".