55696049136 has 480 divisors, whose sum is σ = 197587353600. Its totient is φ = 14552068608.

The previous prime is 55696049113. The next prime is 55696049173. The reversal of 55696049136 is 63194069655.

55696049136 is a `hidden beast` number, since 5 + 5 + 69 + 60 + 491 + 36 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 81545851 + ... + 81546533.

It is an arithmetic number, because the mean of its divisors is an integer number (411640320).

Almost surely, 2^55696049136 is an apocalyptic number.

55696049136 is a gapful number since it is divisible by the number (56) 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 55696049136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98793676800).

55696049136 is an abundant number, since it is smaller than the sum of its proper divisors (141891304464).

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

55696049136 is a wasteful number, since it uses less digits than its factorization.

55696049136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 5248800, while the sum is 54.

The spelling of 55696049136 in words is "fifty-five billion, six hundred ninety-six million, forty-nine thousand, one hundred thirty-six".