55019749175966 has 8 divisors (see below), whose sum is σ = 82541712494520. Its totient is φ = 27505845011128.

The previous prime is 55019749175959. The next prime is 55019749176001. The reversal of 55019749175966 is 66957194791055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×55019749175966² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 55019749175893 and 55019749175902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2014771361 + ... + 2014798668.

It is an arithmetic number, because the mean of its divisors is an integer number (10317714061815).

Almost surely, 2^{55019749175966} is an apocalyptic number.

55019749175966 is a deficient number, since it is larger than the sum of its proper divisors (27521963318554).

55019749175966 is a wasteful number, since it uses less digits than its factorization.

55019749175966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029576858.

The product of its (nonzero) digits is 642978000, while the sum is 74.

The spelling of 55019749175966 in words is "fifty-five trillion, nineteen billion, seven hundred forty-nine million, one hundred seventy-five thousand, nine hundred sixty-six".