11620455770 has 64 divisors (see below), whose sum is σ = 26091576576. Its totient is φ = 3620090880.

The previous prime is 11620455719. The next prime is 11620455779. The reversal of 11620455770 is 7755402611.

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 31 ways as a sum of consecutive naturals, for example, 2779922 + ... + 2784098.

It is an arithmetic number, because the mean of its divisors is an integer number (407680884).

Almost surely, 2^11620455770 is an apocalyptic number.

11620455770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11620455770 is an abundant number, since it is smaller than the sum of its proper divisors (14471120806).

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

11620455770 is a wasteful number, since it uses less digits than its factorization.

11620455770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7815.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 11620455770 in words is "eleven billion, six hundred twenty million, four hundred fifty-five thousand, seven hundred seventy".