55551401136 has 360 divisors, whose sum is σ = 197764873488. Its totient is φ = 14394240000.

The previous prime is 55551401131. The next prime is 55551401189. The reversal of 55551401136 is 63110415555.

55551401136 is a `hidden beast` number, since 5 + 5 + 5 + 514 + 0 + 1 + 136 = 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 55551401136.

It is not an unprimeable number, because it can be changed into a prime (55551401131) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 54408306 + ... + 54409326.

Almost surely, 2^55551401136 is an apocalyptic number.

55551401136 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 55551401136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98882436744).

55551401136 is an abundant number, since it is smaller than the sum of its proper divisors (142213472352).

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

55551401136 is a wasteful number, since it uses less digits than its factorization.

55551401136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The spelling of 55551401136 in words is "fifty-five billion, five hundred fifty-one million, four hundred one thousand, one hundred thirty-six".