2155103496 has 480 divisors, whose sum is σ = 7925480640. Its totient is φ = 541271808.

The previous prime is 2155103491. The next prime is 2155103497. The reversal of 2155103496 is 6943015512.

2155103496 is a `hidden beast` number, since 2 + 155 + 10 + 3 + 496 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 2155103496.

It is not an unprimeable number, because it can be changed into a prime (2155103491) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 9493735 + ... + 9493961.

It is an arithmetic number, because the mean of its divisors is an integer number (16511418).

Almost surely, 2^2155103496 is an apocalyptic number.

2155103496 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2155103496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3962740320).

2155103496 is an abundant number, since it is smaller than the sum of its proper divisors (5770377144).

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

2155103496 is a wasteful number, since it uses less digits than its factorization.

2155103496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 2155103496 is about 46423.0922709808. The cubic root of 2155103496 is about 1291.6832974027.

The spelling of 2155103496 in words is "two billion, one hundred fifty-five million, one hundred three thousand, four hundred ninety-six".