1656541296 has 120 divisors (see below), whose sum is σ = 5037693440. Its totient is φ = 506217600.

The previous prime is 1656541267. The next prime is 1656541339. The reversal of 1656541296 is 6921456561.

1656541296 is a `hidden beast` number, since 16 + 5 + 6 + 541 + 2 + 96 = 666.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75051 + ... + 94581.

Almost surely, 2^1656541296 is an apocalyptic number.

1656541296 is a gapful number since it is divisible by the number (16) 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 1656541296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2518846720).

1656541296 is an abundant number, since it is smaller than the sum of its proper divisors (3381152144).

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

1656541296 is a wasteful number, since it uses less digits than its factorization.

1656541296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19595 (or 19586 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 1656541296 is about 40700.6301671117. The cubic root of 1656541296 is about 1183.2252319596.

The spelling of 1656541296 in words is "one billion, six hundred fifty-six million, five hundred forty-one thousand, two hundred ninety-six".