11655551010 has 32 divisors (see below), whose sum is σ = 27978939072. Its totient is φ = 3107522880.

The previous prime is 11655550961. The next prime is 11655551023. The reversal of 11655551010 is 1015555611.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124080 + ... + 196740.

It is an arithmetic number, because the mean of its divisors is an integer number (874341846).

Almost surely, 2^11655551010 is an apocalyptic number.

11655551010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11655551010 is an abundant number, since it is smaller than the sum of its proper divisors (16323388062).

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

11655551010 is a wasteful number, since it uses less digits than its factorization.

11655551010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78018.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 11655551010 in words is "eleven billion, six hundred fifty-five million, five hundred fifty-one thousand, ten".