2156468496 has 320 divisors, whose sum is σ = 7352529408. Its totient is φ = 528482304.

The previous prime is 2156468491. The next prime is 2156468519. The reversal of 2156468496 is 6948646512.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (2156468491) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8390800 + ... + 8391056.

Almost surely, 2^2156468496 is an apocalyptic number.

2156468496 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 2156468496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3676264704).

2156468496 is an abundant number, since it is smaller than the sum of its proper divisors (5196060912).

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

2156468496 is a wasteful number, since it uses less digits than its factorization.

2156468496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 2156468496 is about 46437.7916787610. The cubic root of 2156468496 is about 1291.9559487452.

The spelling of 2156468496 in words is "two billion, one hundred fifty-six million, four hundred sixty-eight thousand, four hundred ninety-six".