55661743154 has 16 divisors (see below), whose sum is σ = 84193560000. Its totient is φ = 27597848304.

The previous prime is 55661743153. The next prime is 55661743187. The reversal of 55661743154 is 45134716655.

It is a happy number.

It is a super-4 number, since 4×55661743154⁴ (a number of 44 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55661743099 and 55661743108.

It is not an unprimeable number, because it can be changed into a prime (55661743153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22589 + ... + 334415.

It is an arithmetic number, because the mean of its divisors is an integer number (5262097500).

Almost surely, 2^55661743154 is an apocalyptic number.

55661743154 is a deficient number, since it is larger than the sum of its proper divisors (28531816846).

55661743154 is a wasteful number, since it uses less digits than its factorization.

55661743154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312577.

The product of its digits is 1512000, while the sum is 47.

The spelling of 55661743154 in words is "fifty-five billion, six hundred sixty-one million, seven hundred forty-three thousand, one hundred fifty-four".